springer springer sep 1974 (80 risultati)

Taschenbuch. Condizione: Neu. Neuware - The IAU Symposium No. 62, 'The Stability of the Solar System and of Small Stellar Systems' was held in Warsaw in Poland during the Extraordinary General Assembly of the IAU in commemoration of the SOOth anniversary of the birth of Nicolaus Copernicus. The Symposium was sponsored by Commission 7 (Celestial Mechanics) and cosponsored by Commissions 4 (Ephemerides) and 37 (Star Clusters and Asso ciations) of the IAU and by IUTAM. The Organizing Committee included Y. Kozai (Chairman), J. A. Agekjan, A. Deprit, G. N. Duboshin, S. Glska (Local represen tative), M. Henon, B. Morando and C. Parkes (IUTAM representative). The Symposium was supported financially by the IA U, the IUT AM and the Polish Academy of Sciences. Y. KOZAI Chairman of the Organizing Committee STABILITY THEORY IN CELESTIAL MECHANICS J MOSER Courant Institute of Mathematical ScIences, New York University, New York, N. Y. 10012, U.S.A. Abstract, This expository lecture surveys recent progress of the stability theory in Celestial Mechanics with emphasis on the analytical problems. In particular, the old question of convergence of perturbation series are discussed and positive results obtained, in the light of the work by Kolmogorov Arnold and Moser. For the three body problem, classes of quasi-periodic solutions and doubly asymptotic (or homo clinic) orbits are discussed.

Buch. Condizione: Neu. Neuware - No student or colleague of Marjorie Grene will miss her incisive presence in these papers on the study and nature of living nature, and we believe the new reader will quickly join the stimulating discussion and critique which Professor Grene steadily provokes. For years she has worked with equally sure knowledge in the classical domain of philosophy and in modern epistemological inquiry, equally philosopher of science and metaphysician. Moreover, she has the deeply sensible notion that she should be a critically intelligent learner as much as an imaginatively original thinker, and as a result she has brought insightful expository readings of other philosophers and scientists to her own work. We were most fortunate that Marjorie Grene was willing to spend a full semester of a recent leave here in Boston, and we have on other occasions sought her participation in our colloquia and elsewhere. Now we have the pleasure of including among the Boston Studies in the Philosophy of Science this generous selection from Grene's philosophical inquiries into the understanding of the natural world, and of the men and women in it. Boston University Center for the R. S. COHEN Philosophy and History of Science M. W. W ARTOFSKY April 1974 PREFACE This collection spans - spottily - years from 1946 ('On Some Distinctions between Men and Brutes') to 1974 ('On the Nature of Natural Necessity').

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Coherent configurations and generalized polygons.- Some thoughts oh the no-three-in-line problem.- A moore-penrose inverse for boolean relation matrices.- The stability index of graphs.- Stability.- An application of combinatorial techniques to a topological problem.- Embeddings of projective planes.- An Extension of kasteleyn's method of enumerating the 1-factors of planar graphs.- A class of block designs having the same parameters as the design of points and lines in a projective 3-space.- Counting stable trees.- The Hamiltonian product of graphs.- Derivable chains containing generalized hall planes.- Characterisation of a pregeometry by its flats.- Eulerian washing machines.- Sum-free sets, difference sets and cyclotomy.- Polyhedral decomposition of trivalent graphs.- Graphs and block designs associated with the three-dimensional unitary groups.- Williamson matrices of even order.- Supersquares. 164 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Lecture 1: Transversally elliptic operators.- Lecture 2: The index of transversally elliptic operators.- Lecture 3: The excision and multiplicative properties.- Lecture 4: The naturality of the index and the localization theorem.- Lecture 5: The index homomorphism for G = S1.- Lecture 6: The operators for G = S1.- Lecture 7: Toral actions with finite isotropy groups.- Lecture 8: The index homomorphism for G = Tn.- Lecture 9: The cohomology formula.- Lecture 10: Applications. 104 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Theory of L systems: From the point of view of formal language theory.- A model for the growth and flowering of aster novae-angliae on the basis of table L-systems.- Adding continuous components to L-systems.- Formal language theoretical approach to intracellular behavior.- Three useful results concerning L languages without interactions.- On the size of dol languages.- Generatively deterministic L languages. Subword point of view.- Growth of strings in context dependent Lindenmayer systems.- Some growth functions of context-dependent L-systems.- Dol systems with rank.- Equivalence of L-systems.- The syntactic inference problem for dol-sequences.- Free groups in Lindenmayer systems.- Notes on pre-set pushdown automata.- Recurrence systems.- Adult languages of L systems and the Chomsky hierarchy.- Structured OL-systems.- Context in parallel rewriting.- Nonterminals and codings in defining variations of OL-systems.- Iteration grammars and lindenmayer AFL's.- Hyper-AFL's and ETOL systems.- -OL systems.- Bounded parallelism and regular languages.- Multidimensional Lindenmayer organisms.- Bibliography on L systems. 348 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Non-abelian pontryagin duality.- The topological dual, the algebraic dual and Radon-Nikodym derivatives.- Segal algebras and dense ideals in Banach algebras.- Field approximation and free approximation for differential equations.- Linear interpolation and linear extension of functions.- Wave front sets and hypoelliptic operators.- Harmonic analysis in the complex domain and applications in the theory of analytical and infinitely differentiable functions.- M¿ntz-szasz theorem with integral coefficients I.- Inductive limits of Banach spaces and complex analysis.- Representation of nonlinear operators with the hammerstein property.- On polynomial approximation with respect to general weights.- Determination of conformal modules of ring domains and quadrilaterals.- Solovay's axion and functional analysis.- Q ¿ Uniform algebras and operator theory.- On polynomials with a prescribed zero.- A priori inequalities for systems of partial differential equations.- Recent results on Segal algebras.- Measurability of lattice operations in a cone.- On some nonlinear elliptic boundary value problems.- Quasicomplemented Banach algebras.- On the (Lp, Lp) multipliers.- Heredity in metric projections.- Multipliers on weighted spaces.- On properties of traces of functions belonging to weight spaces.- Fundamental solutions of hyperbolic differential equations.- Non-self-conjugate differential dirac operators expansion in eigenfunctions through the whole axis.- Topological algebras in several complex variables.- Spectra of composition operators on C[0,1].- Linear functionals on vector valued k¿the spaces.- A general view on unitary dilations.- Quantization in Hamiltonian particle mechanics.- The lebesgue constants for polynomial interpolation.- Approximation theorems for polynomial spline operators.- Characterization of the barrelled, d-barrelled and -barrelled spaces of continuous functions.- Cardinal spline interpolation and the exponential Euler splines.- Approximation of analytic functions in Hausdorff metric.- Invariant means and almost convergence in non-Archimedean analysis.- Parameasures and multipliers of Segal algebras.- Segal algebras of Beurling type.- Splines in Hilbert spaces.- A survey of v-integral representation theory for operators on function spaces including the topological vector space setting.- Isotone measures, 1948¿1973. 596 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume consists of papers presented to the Second International Conference on the Theory of Groups held in Canberra in August 1973 together with areport by the chairman of the Organizing Committee and a collection of problems. The manuscripts were typed by Mrs Geary, the bulk of the bibliographie work was done by Mrs Pinkerton, and a number of colleagues helped with proof-reading; Professor Neumann, Drs Cossey, Kovacs, MeDougall, Praeger, Pride, Rangaswamy and Stewart. I here reeord my thanks to all these people for their lightening of the editorial burden. M. F. Newrnan CONTENTS 1 Introduction . . 8 ~yan, Periodic groups of odd exponent Reinhold Baer, Einbettungseigenschaften von Normalteilern: der Schluss vom 13 Endlichen aufs Unendliche D. W. Barnes, Characterisation of the groups with the Gaschütz cohomology property 63 Gi Ibert Baumslag, Finitely presented metabe1ian groups 65 Gi Ibert Baumslag, Some problems on one-relator groups 75 A. J. Ba~, J. Kautsky and J. W. Wamsley, Computation in nilpotent groups (application) 82 Wi I I iam W. Boone, Between logic and group theory 90 Richard Brauer, On the structure of blocks of characters of finite groups 103 A. M. Brunner, Transitivity-systems of certain one-relator groups 131 Egg8r M. Bryant, Characteristic subgroups of free groups 141 ~y~, Metabe1ian varieties of groups 150 R. A. Bryce and John Cossey, Subdirect product c10sed Fitting c1asses 158 R. G. 756 pp. Englisch, Deutsch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -be hoped. We have improved measurements by at best a factor of 3. So thIS paper, unfortunately, IS really a status report rather than a progress report. There are, however, a few new results to mention. I shall present the results wIthout glVlng any detaIls of the experImental apparatus. In general, sources of error and problems in these measurements are not determined by the apparatus itself. The most important new result IS that of Paul Henry (1971), who employed a radiometer mounted on a rotatmg platform suspended beneath a balloon. Because he employed a rotatmg platform he was able to look for amsotropy over a WIde area area of the sky (about one-half of the northern hemIsphere), not Just a CIrcle of con stant dechnatIOn. In a smgle mght, he was able to obtam enough data to establIsh a value for the component of the 'dIpole' anisotropy parallel to the spm aXIS of the Earth It IS LI T = (3. 2 ± 0 8) x 10-3 K in the direction (X = I Oh-ll hand () = - 30°. HIS results are conSIstent WIth the earher results of Conkhn (1969), but provIde the Im portant addItIonal datum that the motion of the Earth with respect to the co-movmg coordinate system (and parallel to the spm aXIS of the Earth) IS small. MeanwhIle, Conklin refined and repeated hIS earher measurement and reduced the statIstical error. The results of his work are reported m the IAU Symp. 44 (1972). 396 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 240 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Some simple remarks on the basis of transport theory.- Entropy, dynamics and scattering theory.- Response, relaxation and fluctuation.- Fluctuating hydrodynamics and renormalization of susceptibilities and transport coefficients.- Irreversibility of the transport equations.- Ergodic theory and statistical mechanics.- Correlation functions in Heisenberg magnets.- On the Enskog hard-sphere kinetic equation and the transport phenomena of Dense simple gases.- What can one learn from Lorentz models .- Conductivity in a magnetic field.- Transport properties in gases in the presence of external fields.- Transport properties of dilute gases with internal structure. 540 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The present text is a rational analysis of the concept of the chemical bond by means of the principles of wave mechanics. The discussion of the material has been arranged so as to render its main content comprehensible for readers who may not have had pre'ious training in quantum mechanics. The text comprises three major parts. It begins with an exposition of the fundamental ideas. In this section the principles are reviewed from which de Broglie developed his mechanics; this allows the book to be read by chemistry majors and freshmen alike. However, we believe that it may also be of interest to university-and college teachers who must include certain aspects of quantum chemistry into their courses while being insufficiently familiar with the subject. It may even be of interest to science teachers in secondary schools. Finally, having been a witness to the evolution of these notions for over a quarter of a century, we present certain concepts from a particular point of view which might prove attractive to chemists of all kinds, perhaps even quantum chemists. The second, more technical part summarizes the methods of constructing wave functions that describe the electrons in molecules. This section can only be fully appreciated by those readers who are familiar with some aspects of the algorithms used in quantum mechanics. 124 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -GEORG WILHELM FRIEDRICH HEGEL (1770-1831) THE PLACE OF HEGEL IN THE HIS TOR Y OF PHILOSOPHY In order to gain a proper perspective of Hegel's place in the history of philo sophy, it might be useful to focus on one key concept which has evolved significantly in meaning, from the time of Aristotle to Hegel. I am speaking of the philosophical concept of the 'category. ' In Aristotle's system, there were ten categories (or 'predicaments') of reality or being. These included substantiality, time, place, quantity, quality, and other aspects of knowable beings. The most notable thing about these categories is that they all have to do with what we would call 'objective' realities. That is, none of them purport to describe subjective or mental states or conditions. In modern philosophy (i. e. , philosophy since the time of Descartes), there was a swing of the pendulum in the opposite direction, from objectivity to subjectivity - culminating in the twelve new 'categories' of Kant. All of Kant's categories were subjective ways oflooking at reality: We can organize objective phenomena into universal unities; therefore the first Kantian cate gory is 'unity. ' We can separate objective phenomena into particular divi sions; therefore the second category is 'plurality. ' And so forth. With Hegel, the modern trend to subjectivism is arrested, and we have, not surprisingly, a new type of 'category' - the category of the unity of thought and being, of self and other, of subject and object. 96 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -I. THE MAN, CONRAD OF PRUSSIA Conrad of Prussia is not so much as mentioned in any of the usual sources. And even such notable mediaevalists as Mlle. Marie-Therese d'Alverny, Conservateur en-chef, and J. Reginald O'Donnell, C. S. B. , of the Pontifical Institute of Mediaeval Studies, Toronto, Canada, have been unable to identify him. Nothing at all, therefore, is known about Conrad, if that is the author's name. For there is some doubt that it is. In the colophon of the Admont commentary on Aquinas' De Ente et Essentia,l we find a word, so completely erased that it is illegible, followed by the words 'de Prusya. ' Martin Grabmann argues that it is correct to feel that the erasure is an erasure of the name 'Conradi,' since in the colophon of the Admont commentary on Dominicus Gundissalinus' De Unitate et Uno,2 which follows the commentary on the De Ente et Essentia, we find again an erased word followed by the words 'de Prusya. ' But the erasure is not complete. One can here read the name 'Conradi. ' 3 And so, the manuscript of the commentary on the De Unitate et Uno clearly attributed this work to Conrad of Prussia before the attempted erasure. 216 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -One / Correlation and Totality.- Two / The Beginning and the Result.- Three / Potentiality and Actuality.- Four / Necessity and Freedom.- Five / The Process and the System.- Six / The First and the Second Synthesis.- Seven / Abstraction and Concreteness. 148 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Institute of Ecology (TIE) was organized to provide a mech anism for addressing ecological and environmental issues that were beyond the special interests of ecology as a profession. One method of evaluating such issues is the workshop, and this report describes the results of the third TIE workshop on a major environmental subject. The ecology of tropical regions is of interest to all the inhabitants of the biosphere. The tropics provide mankind with both the opportunity for and the challenge of essential resources, land for settlement and development, and waters for numerous uses. Moreover, they provide examples of misuse of the landscape, fragility of ecological systems, and serious environmental problems. Unfortunately, the study of the ecology of the tropics has not kept pace with the ecology of other regions. The purpose of this report, therefore, is to determine the research approaches that will lead to advances in our theoretical un derstanding of tropical systems and, more importantly, in the applica tion of that knowledge to human problems. Although the principal focus of the report is on the neotropics, it will be useful to the full spectrum of persons concerned with the tropics around the world government officials, sCientists, students of ecology, and others. TIE is especially pleased to thank the numerous scientists and ad ministrators who participated in the workshop and who contributed to this report. Arthur D. 288 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Proceedings of IAU Symposium No. 58 held in Canberra, Australia, August 12-15, 1973 460 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -It has been said that never has a monarch so narrowly missed 'greatness' as did the Holy Roman Emperor Joseph II. An idealistic, sincere, and hardworking monarch whose ultilitarian bent, humanitarian instincts, and ambitious programs of reform in every area of public concern have prompted historians to term him an 'enlightened despot,' 'revolutionary Emperor,' 'philosopher on a throne,' and a ruler ahead of his time, Joseph has also been condemned for being insensitive to the phobias and follies of his subjects, essentially unrealistic, almost utopian, in establishing his goals, and dogmatic and overly precipitous in trying to achieve them. Efforts to analyze and explain the actions of this complex and controversial personality have involved a number of savants in investigations of 'Josephinism' (or as I prefer to call it, 'Josephism'), dealing in great detail with the motiva tions, substance, and influence of his innovations. The roots of Josephism run deep, but can be observed emerging here and there from the intellectual and political soil that nourished them, before joining the central trunk of the system formulated during the latter years of Maria Theresa's reign to grow to an ephemeral and stunted maturity under Joseph II. 360 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Recent years have seen the appearance of many English-Ianguage hand books of logie and numerous monographs on topieal discoveries in the foundations of mathematies. These publications on the foundations of mathematies as a whole are rather difficult for the beginners or refer the reader to other handbooks and various pieeemeal eontribu tions and also sometimes to largely conceived 'mathematical fol klore' of unpublished results. As distinct from these, the present book is as easy as possible systematic exposition of the now classical results in the foundations of mathematics. Henee the book may be useful especially for those readers who want to have all the proofs carried out in full and all the concepts explained in detail. In this sense the book is self-contained. The reader's ability to guess is not assumed, and the author's ambition was to reduce the use of sueh words as evident and obvious in proofs to aminimum. This is why the book, it is believed, may be helpful in teaehing or learning the foundation of mathematics in those situations in which the student cannot refer to a parallel lecture on the subject. This is also the reason that I do not insert in the book the last results and the most modem and fashionable approaches to the subjeet, which does not enrich the essential knowledge in founda tions but ean discourage the beginner by their abstract form. A. G. 608 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Coherent configurations and generalized polygons.- Some thoughts oh the no-three-in-line problem.- A moore-penrose inverse for boolean relation matrices.- The stability index of graphs.- Stability.- An application of combinatorial techniques to a topological problem.- Embeddings of projective planes.- An Extension of kasteleyn's method of enumerating the 1-factors of planar graphs.- A class of block designs having the same parameters as the design of points and lines in a projective 3-space.- Counting stable trees.- The Hamiltonian product of graphs.- Derivable chains containing generalized hall planes.- Characterisation of a pregeometry by its flats.- Eulerian washing machines.- Sum-free sets, difference sets and cyclotomy.- Polyhedral decomposition of trivalent graphs.- Graphs and block designs associated with the three-dimensional unitary groups.- Williamson matrices of even order.- Supersquares.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 164 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 400 pp. Französisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 216 pp. Englisch, Französisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Sur les semi-groupes de convolution.- Extreme harmonic functions on groups.- Operateurs de translation generalisee et semi-groupes de convolution.- Noyaux de convolution et balayage sur tout ouvert.- A characterization of non-symmetric translation invariant Dirichlet forms.- Propriete de droite fixe et fonctions harmoniques positives.- Distances hilbertiennes invariantes sur un espace homogene.- Generalisations de la notion des classes Hp de Hardy.- Transformation de Stieltjes et fonctions operant sur les potentiels abstraits.- Factorisations et lois limites de la diffusion horizontale au-dessus d'un espace riemannien symetrique.- Fonctions spheriques dans les groupes Sp(n, l).- Operateurs dissipatifs et codissipatifs invariants sur un espace homogene. 256 pp. Englisch, Französisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Lecture 1: Transversally elliptic operators.- Lecture 2: The index of transversally elliptic operators.- Lecture 3: The excision and multiplicative properties.- Lecture 4: The naturality of the index and the localization theorem.- Lecture 5: The index homomorphism for G = S1.- Lecture 6: The operators for G = S1.- Lecture 7: Toral actions with finite isotropy groups.- Lecture 8: The index homomorphism for G = Tn.- Lecture 9: The cohomology formula.- Lecture 10: Applications.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 104 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Theory of L systems: From the point of view of formal language theory.- A model for the growth and flowering of aster novae-angliae on the basis of table L-systems.- Adding continuous components to L-systems.- Formal language theoretical approach to intracellular behavior.- Three useful results concerning L languages without interactions.- On the size of dol languages.- Generatively deterministic L languages. Subword point of view.- Growth of strings in context dependent Lindenmayer systems.- Some growth functions of context-dependent L-systems.- Dol systems with rank.- Equivalence of L-systems.- The syntactic inference problem for dol-sequences.- Free groups in Lindenmayer systems.- Notes on pre-set pushdown automata.- Recurrence systems.- Adult languages of L systems and the Chomsky hierarchy.- Structured OL-systems.- Context in parallel rewriting.- Nonterminals and codings in defining variations of OL-systems.- Iteration grammars and lindenmayer AFL's.- Hyper-AFL's and ETOL systems.- -OL systems.- Bounded parallelism and regular languages.- Multidimensional Lindenmayer organisms.- Bibliography on L systems.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 348 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Préliminaires.- La méthode de Schneider.- La méthode de Gel'fond.- Type de transcendance.- Un critère de transcendance.- Zéros de polynômes exponentiels.- Propriétés d'indépendance algébrique de la fonction exponentielle.- La méthode de Baker. 292 pp. Französisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Non-abelian pontryagin duality.- The topological dual, the algebraic dual and Radon-Nikodym derivatives.- Segal algebras and dense ideals in Banach algebras.- Field approximation and free approximation for differential equations.- Linear interpolation and linear extension of functions.- Wave front sets and hypoelliptic operators.- Harmonic analysis in the complex domain and applications in the theory of analytical and infinitely differentiable functions.- Müntz-szasz theorem with integral coefficients I.- Inductive limits of Banach spaces and complex analysis.- Representation of nonlinear operators with the hammerstein property.- On polynomial approximation with respect to general weights.- Determination of conformal modules of ring domains and quadrilaterals.- Solovay's axion and functional analysis.- Q - Uniform algebras and operator theory.- On polynomials with a prescribed zero.- A priori inequalities for systems of partial differential equations.- Recent results on Segal algebras.- Measurability of lattice operations in a cone.- On some nonlinear elliptic boundary value problems.- Quasicomplemented Banach algebras.- On the (Lp, Lp) multipliers.- Heredity in metric projections.- Multipliers on weighted spaces.- On properties of traces of functions belonging to weight spaces.- Fundamental solutions of hyperbolic differential equations.- Non-self-conjugate differential dirac operators expansion in eigenfunctions through the whole axis.- Topological algebras in several complex variables.- Spectra of composition operators on C[0,1].- Linear functionals on vector valued köthe spaces.- A general view on unitary dilations.- Quantization in Hamiltonian particle mechanics.- The lebesgue constants for polynomial interpolation.- Approximation theorems for polynomial splineoperators.- Characterization of the barrelled, d-barrelled and -barrelled spaces of continuous functions.- Cardinal spline interpolation and the exponential Euler splines.- Approximation of analytic functions in Hausdorff metric.- Invariant means and almost convergence in non-Archimedean analysis.- Parameasures and multipliers of Segal algebras.- Segal algebras of Beurling type.- Splines in Hilbert spaces.- A survey of v-integral representation theory for operators on function spaces including the topological vector space setting.- Isotone measures, 1948-1973.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 596 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Periodic groups of odd exponent.- Einbettungseigenschaften von Normalteilern: Der Schluss vom Endlichen aufs Unendliche.- Characterisation of the groups with the Gaschütz cohomology property.- Finitely presented metabelian groups.- Some problems on one-relator groups.- Computation in nilpotent groups (application).- Between logic and group theory.- On the structure of blocks of characters of finite groups.- Transitivity-systems of certain one-relator groups.- Characteristic subgroups of free groups.- Metabelian varieties of groups.- Subdirect product closed fitting classes.- On the rank of the intersection of subgroups of a fuchsian group.- Subgroups of binary relations.- The 2-adic representations of Klein's four group.- A general purpose group theory program.- On the modular representations of the general linear and symmetric groups.- Words which give rise to another group operation for a given group.- Classes of finite soluble groups.- A note on blocks.- The subgroup theorem for amalgamated free products, HNN-constructions and colimits.- Linear representations over principal ideal domains.- A property common to the Weyl and orthogonal groups.- Primitive extensions of maximal diameter of multiply transitive permutation groups.- Some characters of orthogonal groups over the field of two elements.- Type sets and admissible multiplications.- Power series and matrix representations of certain relatively free groups.- The nilpotency class of finitely generated groups of exponent four.- Hypocritical and sincere groups.- Sylow subgroups of locally finite groups.- A reidemeister-schreier program.- Non-nilpotent groups with normalizer condition.- The influence of 2-sylow intersections on the structure of finite simple groups.- Rank four configurations.- Some nonsimplicitycriteria for finite groups.- Free subgroups of free topological groups.- Some questions in the theory of soluble groups.- Locally finite simple groups.- Normal subgroups of groups of prime-power order.- Some related questions in the theory of groups and lie algebras.- Hanna Neumann's problems on varieties of groups.- Finite projective planes and sharply 2-transitive subsets of finite groups.- Non Euclidean crystallographic groups.- On subnormality in soluble minimax groups.- Varieties generated by finite algebras.- Computing with finite simple groups.- Compact torsion groups.- Braid groups: A survey.- Two-bridge knots have residually finite groups.- Periodic automorphisms of the two-generator free group.- On groups of exponent four: A criterion for nonsolvability.- The topology of free products of topological groups.- Some groups I have known.- Transitive permutation groups of prime degree.- Ideals in the centre of a group ring.- A non-distributive metabelian variety lattice.- Polynomial maps.- Über Erzeugende Ebener Diskontinuierlicher Gruppen.- Contribution to the theory of abstract groups.- Sylow subgroups of finite permutation groups.- On the Nielsen equivalence of pairs of generators in certain HNN groups.- The collineation groups of finite generalized hall planes.- Abelian groups with self-injective endomorphism rings.- Lattice isomorphisms and saturated formations of finite soluble groups.- Some reflections on HNN extensions.- Amalgames et points fixes.- Geometric characterizations in finite group theory.- Torsion-free metabelian groups with infinite cyclic quotient groups.- On the lie ring of a group of prime exponent.- Computation in nilpotent groups (theory).- On groups admitting an elementary Abelian automorphism group.- Varieties described by verbalsubgroups.- A relation in free products.- A note on subsoluble groups.- On generalized soluble groups.- Finite groups with sylow 2-subgroups of type the alternating group of degree sixteen.- Problem section.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 756 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Opening Address.- to the Scientific Sessions. Accidents in Stereotaxy¿Side-Effects or Bonus .- Section I Epilepsy and Involuntary Movement Disorders.- Stereotactic Operations in Generalized Forms of Epilepsy.- The Role of the Cortex and Subcortical Ganglia in the Evoked Rhythmic Motor Activity.- Importance of the Cerebellar Hemisphere in Production of Tremulous Movement or Choreo-Dystonic Movement in Monkeys.- The Placement of Stereotactic Lesions for Involuntary Movements other than in Parkinson¿s Disease.- Stereotactic Operations in Cases of Hereditary and Intention Tremor.- Contributions to the Pathogenesis of Parinaud¿s Syndrome. Vertical Gaze Paralysis Following Bilateral Stereotactic Lesion in the Interstitial Nucleus Region.- Vestibular Function before and after Thalamotomy.- Post-Stereotactic Intracranial Haematomas.- Section II Hind Brain and Spinal Stereotactic Procedures.- Thalamotomy for Control of Chronic Pain.- Combination of Thalamotomy and Longitudinal Myelotomy in the Treatment of Multiple Sclerosis. A Case Report.- Protracted Long-Term Irradiation of Inoperable Midbrain Tumours by Stereotactic Curie-Therapy Using Iridium-192.- The Position and Extent of the Human Dentate Nucleus.- Physiological Guidelines for the Localization of Lesions by Percutaneous Cordotomy.- Physiological Correlates in Stereotactic Spinal Surgery.- A Stereotactic Approach to the Anterior Percutaneous Electrical Cordotomy.- Section III Surgery of the Pituitary Gland and Hypothalamus.- Pituitary Ablation by Yttrium-90.- Hypophysectomy ¿ The Combined Role of Neuro- and Rhino-Surgeons.- Radiological Assessment of the Pituitary Gland.- Stereotactic Pituitary Implantation of Radioisotopes by Transfrontal Route. 300 Cases.- Stereotactic Thermal Pituitary Ablation.- Stereotactic Curie-Therapy of Pituitary Adenomas. A Long-Term Follow-Up Study.- Stereotactic Treatment of Craniopharyngiomas.- Stereotactic Hypothalamotomy in Erethic Children.- Section IV Stereotactic Techniques.- Stereotactic Radiosurgery in Intracranial Arterio-Venous Malformations.- A Versatile Stereotactic System Based on Cylindrical Co-Ordinates and Using Absolute Measurements.- Serial Stereotactic Biopsies.- A Simple Method for Obtaining Stereotactic Biopsies from the Human Basal Ganglia. A Case of Cerebral Porphyria.- Computer Display of Stereotactic Brain Maps and Probe Tracts.- The Use of a Small Digital Computer for Stereotactic Surgery.- Mathematical Models and Analogic Dosimetry on Phantom in the Interstitial Radiotherapy of Brain Tumours with ¿Gamma-Med¿.- Towards a Three-Dimensional Brain Model Stored in a Computer. 276 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The present text is a rational analysis of the concept of the chemical bond by means of the principles of wave mechanics. The discussion of the material has been arranged so as to render its main content comprehensible for readers who may not have had pre'ious training in quantum mechanics. The text comprises three major parts. It begins with an exposition of the fundamental ideas. In this section the principles are reviewed from which de Broglie developed his mechanics; this allows the book to be read by chemistry majors and freshmen alike. However, we believe that it may also be of interest to university-and college teachers who must include certain aspects of quantum chemistry into their courses while being insufficiently familiar with the subject. It may even be of interest to science teachers in secondary schools. Finally, having been a witness to the evolution of these notions for over a quarter of a century, we present certain concepts from a particular point of view which might prove attractive to chemists of all kinds, perhaps even quantum chemists. The second, more technical part summarizes the methods of constructing wave functions that describe the electrons in molecules. This section can only be fully appreciated by those readers who are familiar with some aspects of the algorithms used in quantum mechanics.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 126 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The Institute of Ecology (TIE) was organized to provide a mech anism for addressing ecological and environmental issues that were beyond the special interests of ecology as a profession. One method of evaluating such issues is the workshop, and this report describes the results of the third TIE workshop on a major environmental subject. The ecology of tropical regions is of interest to all the inhabitants of the biosphere. The tropics provide mankind with both the opportunity for and the challenge of essential resources, land for settlement and development, and waters for numerous uses. Moreover, they provide examples of misuse of the landscape, fragility of ecological systems, and serious environmental problems. Unfortunately, the study of the ecology of the tropics has not kept pace with the ecology of other regions. The purpose of this report, therefore, is to determine the research approaches that will lead to advances in our theoretical un derstanding of tropical systems and, more importantly, in the applica tion of that knowledge to human problems. Although the principal focus of the report is on the neotropics, it will be useful to the full spectrum of persons concerned with the tropics around the world government officials, sCientists, students of ecology, and others. TIE is especially pleased to thank the numerous scientists and ad ministrators who participated in the workshop and who contributed to this report. Arthur D.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 288 pp. Englisch.