springer springer nov 1974 (95 risultati)

Buch. Condizione: Neu. Neuware - Renaissance man ' . discovered many a mechanical marvel . The achievement of the astronauts '' opened up comparable prospects to the men of today, but of infinitely wider scope'. C. LUCET, French Ambassador to the United States. 'Any future . must inevitably pass through the channel of combined disciplines . (from which) will arise a humanization of state-of-the-art technology, and updating of methods of Earth Science.' Author unknown. 'It is difficult to say what is impossible, for the dream of yesterday is the hope of today and reality tomorrow.' ROBERT GODDARD, American physicist. This'phrase has become the symbol of NASA . - Is there a crisis of the spirit , Bu/. Soc. Prof. Fr. en Amer. (1969) p. 9. \*. La recherchespatiale [Space Research] (May 1969) p. 15. INTRODUCTION FROM GALILEO TO ALDRIN AND ARMSTRONG In 1610, Galileo observed the surface of the Moon through the lens which bears his name and announced that, contrary to official opinion, its surface was irregular and not smooth. We now know that this observation -and many others ofGalileo-was a correct one, but the opposition that always arises against research too far ahead of its time resulted in his condemnation.

Taschenbuch. Condizione: Neu. Neuware - Philosophy of Science deals with the problem, 'What is science ' It seems that the answer to this question can only be found if we have an answer to the question, 'How does science function ' Thus, the study of the methodology of social sciences is a prominent factor in any analysis of these sciences. The history of philosophy shows clearly that the answer to the question, 'How does science function ' was the conditio sine qua non of any kind of philosophy of science, epistemology and even of logic. Aristotle, Hume, Kant, Mill, Russell, to mention a few classical authors, clearly emphasized the primacy of methodology of science for any kind of philosophy of science. One may even state that analyses of the presup positions, the foundations, the aims, goals and purposes of science are nothing else than analyses of their general and specific formal, as well as practical and empirical methods. Thus, the whole program of any phi losophy of science is dependent on the analysis of the methods of sciences and the establishment of their criteria. If the study of scientific method is the predominant factor in the philosophy of science, then all the other problems will depend on the outcome of such a study. For example, the old question of a possible unity of all social sciences will be brought to a solution by the study of the presuppositions, the methods, as well as of the criteria germane to all social sciences.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Simple program schemes and formal languages. 268 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Lectures on pseudo differential operators.- Singular integral operators on the circle.- Pseudo differential operators.- Elliptic and hypoelliptic operators.- The initial value problem. Hyperbolic operators.- Elliptic boundary value problems; petrowsky parabolic operators.- Propagation of singularities; wave front sets.- The sharp G¿ing inequality. 168 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Convergent functors and spectra.- The generalized Zabrodsky theorem.- A functor which localizes the higher homotopy groups of an arbitrary C. W. complex.- Homological localizations of spaces, groups, and II-modules.- Normalizers of maximal tori.- Metastable embedding and 2-localization.- The mod 3 homotopy type of F4.- On direct limits of nilpotent groups.- Arithmetic K-theory.- Relations in regular categories.- Nilpotent groups with finite commutator subgroups.- Lie groups from a homotopy point of view.- Nilpotent groups, homotopy types and rational lie algebras.- H-space newsletter ¿ May, 1974.- The mod p decomposition of lie groups.- Self-maps of classifying spaces.- Genus and cancellation for h-spaces.- p Equivalences and homotopy type. 184 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Spaces of multilinear mappings.- Continuously differentiable functions.- Functions of class Cp. 152 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Purpose of this monograph.- The maximum likelihood estimator.- The maximum probability estimator.- Maximum probability estimators with a general loss function.- Asymptotic behavior of the likelihood function. Asymptotically sufficient statistics.- Efficiency of maximum likelihood estimators.- Testing hypotheses. 120 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Presentations D¿algebres Connexes.- Homologie Des Algebres Differentielles Libres.- Application A La Determination De Certaines Algebres De Pontryagin D¿Espaces De Lacets.- Sur Certaines Algebres Differentielles Libres.- La Propriete ). 156 pp. Französisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Un th¿¿ de fonctions implicites dans les espaces de fr¿et. application ¿n probl¿ de d¿rmation de structures complexes.- Completion pseudo-convexe en dimension infinie.- Sur le probl¿ de levi banachique.- Probl¿s lin¿res d'analyse complexe d'apr¿mitiaguine et henkine.- Prolongement analytique des fonctions holomorphes born¿.- Complexe de dolbeault sur les vari¿s de stein.- Majorations de type Lp pour les fonctions plurisousharmoniques d'apr¿h¿rmander.- Ideaux de fonctions holomorphes avec poids et calcul fonctionnel.- Remarques sur un th¿¿ de support pour une classe de courants.- Un th¿¿ d'image directe propre.- Nouvelle methode pour l'etude des potentiels associes aux ensembles analytiques.- Solutions faibles d'¿ations aux d¿v¿ fonctionnelles I. 192 pp. Französisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 412 pp. Englisch, Französisch, Deutsch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -On a measure of program structure.- Higher order software techniques applied to a space shuttle prototype program.- A proposed system for structured programming.- S. V. P. Un system interactif pour la validation et la preparation de programmes.- Proving program correctness in LCF.- Finite state testing of structured programs.- Structured recursive programming.- Top-down approach to the synthesis of programs.- A more mechanical approach to program verification.- Tree structures handling by aps.- Towards a high-level job control language.- Formal Definition of a simple on-line teleprocessor in VDL.- The suitability of a very high level language (setl) for simulation structuring and control.- A control statement for natural top-down structured programming.- On the transfer of control between contexts.- Equivalences dans l'alg¿e des sch¿s de programme.- Inductive assertion patterns for recursive procedures.- Completude d'un systeme formel pour prouver l'equivalence de certains schemas recursifs monadiques.- Non-existence of program optimizers in an abstract setting.- Listing of information structures defined by fixed-point operators.- Application de la structuration de systeme a la conception interne du systeme GEMAU.- Un systeme de communications: logiciel ou materiel .- Structure du systeme SAR.- Une Transformation de programmes sequentiels en programmes paralleles.- A model for structured parallel processing in block-structured programming languages.- First version of a data flow procedure language.- Towards more flexible type systems.- Behavioral semantics of nonrecursive control structures.- Towards a theory of type structure. 436 pp. Englisch, Französisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -On adjoint-functor factorisation.- On closed categories of functors II.- An embedding theorem for closed categories.- Limit spaces and closed span categories.- Review of the elements of 2-categories.- Fibrations and Yoneda's lemma in a 2-category.- Elementary cosmoi I.- On clubs and doctrines.- Doctrinal adjunction.- Coherence theorems for lax algebras and for distributive laws. 388 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Local geometry of length.- Projective geometry or homogeneous domains.- Birational geometry or genus.- Affine geometry or filtered domains. 324 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Partial differential equations related to extremal problems for quasiconformal mappings.- Singularly perturbed initial value problems.- Existence and bounds for the lowest critical energy of the hartree operator.- Positive invariance and a Wazewski Theorem.- An application of the hausdorff-young inequality to eigenfunction expansions.- On central dispersions of the differential equation Y =q(t)Y with periodic coefficients.- Generalized translation operators associated with a singular differential operator.- Multi-parameter problems.- Monotonicity with discontinuities in partial differential equations.- On a deficiency index theorem of W. N. Everitt.- The essential self-adjointness of Schr¿dinger operators.- Nonlinear elliptic equations.- A differential inequality with applications to subharmonic functions.- Inequalities associated with certain partial differential operators.- The expansion theorem in multi-parameter sturm-liouville theory.- On the differential equation cr (pD1+qD2)ru=0.- Fundamental solutions for degenerate parabolic equations.- Singular perturbations of a vector boundary value problem.- Asymptotic integration of linear systems.- Nonlinear perturbations of linear elliptic operators.- Limit point-limit circle criteria for (py ) +qy= ky.- On second-order differential operators of limit-circle type.- A dynamical approach to fourth order oscillations.- Over-determined systems and the rectilinear steady flow of simple fluids.- A necessary and sufficient limit-circle criterion for left-definite eigenvalue problems.- Generalized weyl circles.- Existence and multiplicity of solutions of some nonlinear equations.- The floquet problem for almost periodic linear differential equations.- Global estimates for nonlinear reaction and diffusion.- Perturbation theory for Sobolew spaces.- Perturbations of self-adjoint operators in L2 (G) with applications to differential operators.- Square integrable solutions of Lp perturbations of second order linear differential equations.- Deficiency indices of polynomials in symmetric differential expressions.- Transform theorems for two-parameter eigenvalue problems in hilbert space.- Bivariational bounds on ,g , when A =f.- On the limit point and strong limit point classification of 2nth order differential expressions with wildly oscillating coefficients.- Determination of Weyl's m-coefficient for a continuous spectrum.- The matrix functional-differential equation y (x)=Ay( x)+By(x).- A tetrad approach for a system of PDE's.- Quasi-analytic solutions of differential equations.- Integral inequalities and the Liouville transformation.- Hopf bifurcation with an infinite limiting period.- N-Soliton solutions of some non-linear dispersive wave equations of physical significance.- Continuity of generalized solutions of the cauchy problem for the porous medium equation.- Two timing for abstract differential equations.- Counterexamples in the spectral theory of singular Sturm ¿ Liouville operators.- Perturbation of a singular boundary value problem arising from torsional vibration of an inhomogeneous cylinder.- Some function theoretical aspects in the theory of partial differential equations.- A multi-parameter sturm-liouville problem.- Periodic solutions of holomorphic differential equations.- Volterra equations on a hilbert space.- How to get numerical convergence out of instable algorithms.- On the existence of an interface in nonlinear diffusion processes.- H¿lder continuous nonlinear product integrals.- Continuous spectra and linear operator equations.- Asymptotic linearity and a class of noninear Sturm-Liouville problems on the half line.- An elementary calculus for Green's functions associated with singular boundary value problems.- Gew¿hnliche Differentialungleichungen mit quasimonoton wachsenden Funktionen in Banachr¿en.- On the integral equation method for boundary-value problems. 472 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Minor parties in the United States have been studied both individually and collectively. On the basis of these studies, social scientists have set forth certain generalizations concerning the types of American minor parties, their characteristics, their functions, and the obstacles they face in the American party system. However, in their comparative analysis of political parties, political scientists have generally limited themselves to comments about the major parties. This study examines in detail all the minor parties which have participated in the national elections of the Federal Republic of Germany since its inception in 1949 in light of the descriptive and explanatory generalizations which have been formulated about minor parties in the United States. The purpose of such an analysis is threefold. First, it provides materials on the West German minor parties which will be readily accessible for cross-national research. Second, through comparisons with the West German experience, the generalizations pro duced to explain American minor parties are made more suitable for comparative analysis. Third, and most important, it seeks to demonstrate that some minor parties play an important role in a party system and that, therefore, minor parties should not be ignored in the comparative analysis of political parties. I am deeply indebted to Professors William B. Gwyn and James D. Cochrane for their help on this project. This work could not have been completed without Professor Gwyn's guidance and prodding. 236 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Simple program schemes and formal languages.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 268 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Preliminaires de Theorie des Groupes, e.a.d.s.- La Theorie des Bouts.- Pre-Groupes et Structures Bipolaires.- Calcul de L'Algebre (G); le Theoreme de Stallings sur les Groupes a deux Bouts.- Le Theoreme de Stallings sur les Groupes a une Infinite de Bouts.- Varietes de Dimension 3: Theoreme De Kneser-Grushko-Stallings, Les Trois Theoremes De Papakyriakopoulos, Applications. 228 pp. Französisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Fonctions a p-variation bornee.- Fonctions p-Fines Et Points Extremaux.- Fonctions p, -Fines et Nombres Mal Approchees.- Mesures de Caratheodory et Mesures de Besicovitch.- Variation Totale D¿une Fonction.- Une Generalisation du Theoreme de Decomposition de Lebesgue.- Sur les Nombres Derives D¿une Fonction. 352 pp. Französisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Convergent functors and spectra.- The generalized Zabrodsky theorem.- A functor which localizes the higher homotopy groups of an arbitrary C. W. complex.- Homological localizations of spaces, groups, and II-modules.- Normalizers of maximal tori.- Metastable embedding and 2-localization.- The mod 3 homotopy type of F4.- On direct limits of nilpotent groups.- Arithmetic K-theory.- Relations in regular categories.- Nilpotent groups with finite commutator subgroups.- Lie groups from a homotopy point of view.- Nilpotent groups, homotopy types and rational lie algebras.- H-space newsletter - May, 1974.- The mod p decomposition of lie groups.- Self-maps of classifying spaces.- Genus and cancellation for h-spaces.- p Equivalences and homotopy type.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 184 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Spaces of multilinear mappings.- Continuously differentiable functions.- Functions of class Cp.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 152 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Purpose of this monograph.- The maximum likelihood estimator.- The maximum probability estimator.- Maximum probability estimators with a general loss function.- Asymptotic behavior of the likelihood function. Asymptotically sufficient statistics.- Efficiency of maximum likelihood estimators.- Testing hypotheses.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 120 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Lectures on pseudo differential operators.- Singular integral operators on the circle.- Pseudo differential operators.- Elliptic and hypoelliptic operators.- The initial value problem. Hyperbolic operators.- Elliptic boundary value problems; petrowsky parabolic operators.- Propagation of singularities; wave front sets.- The sharp Gårding inequality.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 168 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -On a measure of program structure.- Higher order software techniques applied to a space shuttle prototype program.- A proposed system for structured programming.- S. V. P. Un system interactif pour la validation et la preparation de programmes.- Proving program correctness in LCF.- Finite state testing of structured programs.- Structured recursive programming.- Top-down approach to the synthesis of programs.- A more mechanical approach to program verification.- Tree structures handling by aps.- Towards a high-level job control language.- Formal Definition of a simple on-line teleprocessor in VDL.- The suitability of a very high level language (setl) for simulation structuring and control.- A control statement for natural top-down structured programming.- On the transfer of control between contexts.- Equivalences dans l'algèbre des schémas de programme.- Inductive assertion patterns for recursive procedures.- Completude d'un systeme formel pour prouver l'equivalence de certains schemas recursifs monadiques.- Non-existence of program optimizers in an abstract setting.- Listing of information structures defined by fixed-point operators.- Application de la structuration de systeme a la conception interne du systeme GEMAU.- Un systeme de communications: logiciel ou materiel .- Structure du systeme SAR.- Une Transformation de programmes sequentiels en programmes paralleles.- A model for structured parallel processing in block-structured programming languages.- First version of a data flow procedure language.- Towards more flexible type systems.- Behavioral semantics of nonrecursive control structures.- Towards a theory of type structure.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 436 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Rotation of plane quasiconformal mappings - A summary.- A generalization of the quasiconformality.- Defect relations for meromorphic minimal surfaces: An introduction.- Selfadjoint extension of ordinary differential operators.- On Eichler cohomology and on Eichler integrals.- Quelques recherches sur l'allure a la frontiere des fonctions harmoniques.- Boundedness of solutions of second order differential equations.- Functional analysis and partial differential equations.- Dual theorems for functions defined in the unit disc.- Über die funktionentheoretische Konstruktion von dicht-vollständigen Systemen in allgemeinen normierten Räumen.- The generalized Ahlfors-Heins theorem in R3.- On the approximation of analytic functions by rational functions.- Continued fraction expansions for the ratios of hypergeometric functions evaluated on computers.- A formula relevant to functions meromorphic in an angle and its applications.- The degree of approximation in Müntz's theorem.- Inequalities for condensers, hyperbolic capacity, and extremal lengths.- Degenerate elliptic boundary value problems and applications.- Analytische Fortsetzung über offene Randkomponenten einer berandeten Riemannschen Fläche.- Systeme von zwei linearen partiellen Differentialgleichungen erster Ordnung in zwei Variablen vom hyperbolischen Typus mit parabolischer Anfangskurve.- The generalized radiation problem.- Eine Übertragung der Differentialgleichung erster Ordnung auf Differentialformen in normierten linearen Räumen.- Connected sets with a directional property.- Stetigkeit indefiniter Metriken.- Generalized integrals with respect to base functions which are not of bounded variation.- On partial differential equations of first order.- Reelle Funktionenringe.- Aussenraumaufgaben in der Theorieder Maxwellschen Gleichungen.- On 'closed' normal series and generalized Bernstein polynomials.- Some function-theoretic results involving Baire category.- Über die Anwendung von Übersummierbarkeit zur Approximation regulärer Funktionen.- Closure properties of sequences of exponentals { exp (i n t) }.- Axisymmetric harmonic polynomials in IRN.- Boundary behavior of quasiconformal mappings of a ball.- On extremality and unique extremality of affine mappings.- Axioms which imply analyticity.- Die Gårdingsche Ungleichung in der Lp-Theorie und ihre Anwendungen.- Univalent spiral functions.- Abschnitte von Randfunktionen beschränkter analytischer Funktionen.- Quadratische Differentiale mit divergierenden Trajektorien.- On Green's inequalities.- Time-invariant linear systems and a theorem of Titchmarsh.- Bericht über Picardmengen ganzer Funktionen.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 412 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -On adjoint-functor factorisation.- On closed categories of functors II.- An embedding theorem for closed categories.- Limit spaces and closed span categories.- Review of the elements of 2-categories.- Fibrations and Yoneda's lemma in a 2-category.- Elementary cosmoi I.- On clubs and doctrines.- Doctrinal adjunction.- Coherence theorems for lax algebras and for distributive laws.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 388 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Local geometry of length.- Projective geometry or homogeneous domains.- Birational geometry or genus.- Affine geometry or filtered domains.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 324 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Partial differential equations related to extremal problems for quasiconformal mappings.- Singularly perturbed initial value problems.- Existence and bounds for the lowest critical energy of the hartree operator.- Positive invariance and a Wazewski Theorem.- An application of the hausdorff-young inequality to eigenfunction expansions.- On central dispersions of the differential equation Y =q(t)Y with periodic coefficients.- Generalized translation operators associated with a singular differential operator.- Multi-parameter problems.- Monotonicity with discontinuities in partial differential equations.- On a deficiency index theorem of W. N. Everitt.- The essential self-adjointness of Schrödinger operators.- Nonlinear elliptic equations.- A differential inequality with applications to subharmonic functions.- Inequalities associated with certain partial differential operators.- The expansion theorem in multi-parameter sturm-liouville theory.- On the differential equation cr (pD1+qD2)ru=0.- Fundamental solutions for degenerate parabolic equations.- Singular perturbations of a vector boundary value problem.- Asymptotic integration of linear systems.- Nonlinear perturbations of linear elliptic operators.- Limit point-limit circle criteria for (py ) +qy= ky.- On second-order differential operators of limit-circle type.- A dynamical approach to fourth order oscillations.- Over-determined systems and the rectilinear steady flow of simple fluids.- A necessary and sufficient limit-circle criterion for left-definite eigenvalue problems.- Generalized weyl circles.- Existence and multiplicity of solutions of some nonlinear equations.- The floquet problem for almost periodic linear differential equations.- Global estimates for nonlinear reaction and diffusion.-Perturbation theory for Sobolew spaces.- Perturbations of self-adjoint operators in L2 (G) with applications to differential operators.- Square integrable solutions of Lp perturbations of second order linear differential equations.- Deficiency indices of polynomials in symmetric differential expressions.- Transform theorems for two-parameter eigenvalue problems in hilbert space.- Bivariational bounds on ,g , when A =f.- On the limit point and strong limit point classification of 2nth order differential expressions with wildly oscillating coefficients.- Determination of Weyl's m-coefficient for a continuous spectrum.- The matrix functional-differential equation y (x)=Ay( x)+By(x).- A tetrad approach for a system of PDE's.- Quasi-analytic solutions of differential equations.- Integral inequalities and the Liouville transformation.- Hopf bifurcation with an infinite limiting period.- N-Soliton solutions of some non-linear dispersive wave equations of physical significance.- Continuity of generalized solutions of the cauchy problem for the porous medium equation.- Two timing for abstract differential equations.- Counterexamples in the spectral theory of singular Sturm - Liouville operators.- Perturbation of a singular boundary value problem arising from torsional vibration of an inhomogeneous cylinder.- Some function theoretical aspects in the theory of partial differential equations.- A multi-parameter sturm-liouville problem.- Periodic solutions of holomorphic differential equations.- Volterra equations on a hilbert space.- How to get numerical convergence out of instable algorithms.- On the existence of an interface in nonlinear diffusion processes.- Hölder continuous nonlinear product integrals.- Continuous spectra and linear operator equations.-Asymptotic linearity and a class of noninear Sturm-Liouville problems on the half line.- An elementary calculus for Green's functions associated with singular boundary value problems.- Gewöhnliche Differentialungleichungen mit quasimonoton wachsenden Funktionen in Banachräumen.- On the integral equation method for boundary-value problems.Springer-Verlag KG, Sachsenplatz 4-6, 1201.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This Symposium was held at Surfer's Paradise, Queensland, Australia, from 7 to 11 September 1973. The Organizing Committee, chaired by J. P. Wild, consisted of A. Boischot, A. Bruzek, J. T. Jefferies, G. Newkirk, T. Takakura, and V. V. Zhelez nyakov. We are indebted to the Local Organizing Commettee, chaired by S. F. Smerd and including R. G. Giovanelli, R. E. Loughhead, N. G. Seddon, K. V. Sheridan, and J. P. Wild, for advice in preparing this volume as well as for the smooth arrangement of the sessions. In addition, the session chairmen and reporters are to be thanked for their assistance in preparing the recorded discussions. It is a pleasure to thank Mrs R. Toevs and Mr A. Csoeke-Poeckh of High Altitude Observatory for assistance in editing these Proceedings. The financial aid for the Symposium afforded by the International Astronomical Union, the Ian Potter Foundation of Melbourne, and the Sunshine Foundation of Melboume, as well as generous assistance of the CSIRO Divisions of Physics and Radiophysics is gratefully acknowledged. That the solar corona is not a quiescent plasma was first fully appreciated through the discovery of solar radio bursts thirty years ago. Since that time intensive re search has uncovered a vast variety of coronal disturbances and revised our con cept of this region of the solar atmosphere to that of a dynamic medium undergoing continuous expansion, constantly evolving under the influence of underlying photo spheric activity, and frequently traversed by transient phenomena. 534 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The devotion of an IA U symposium entirely to the topic of chromo spheric fine structure at a time when models of the spherically symmetric chromosphere are still evolving constitutes a valid recognition of the growing feeling among solar astron omers that the chromosphere cannot be understood independently of its discrete structural features. Network structure, which seemingly borders the photospheric supergranule cells, persists intact throughout the chromosphere and most of the chromosphere-corona transition region. The network is the locus of the bright coarse mottles, and the spicule bushes and is the terminus for one end of the quiet chromo spheric fibrils as well. Additionally, it is the locus of most of the magnetic flux of the quiet chromosphere. It is not surprising, therefore, that current studies of the chromosphere tend to center around efforts to better describe the network phenom ena and to ascertain the physical properties of the network features. Clearly, the supergranule cells and associated network structures constitute a fundamental and singularly important feature of solar structure in the boundary layers. Just as it is now clear that much of the chromo spheric fine structure is associated with the network bordering supergranule cells, it seems equally clear that structural features are almost universally associated with both fluid flow and magnetic geometry. Indeed, many observers claim that the brightness features faithfully map the mag netic lines offorce while still others claim that associated with each class of brightness feature there is a more or less unique fluid flow. 332 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Das Motiv für die Veranstaltung dieses Symposiums über die Beziehungen zwischen metallogenetischen und geochemischen Provinzen war ein egoistisches Informationsbedürfnis des Organisators. Als ich 1967 an dem Manuskript über Erzprovinzen und Kontinentaldrift arbeitete, ergab sich die Frage, ob die Metalle der Lagerstätten in den wandernden Kontinentalschollen beheimatet sind oder ob sie aus dem wechselnden Substratum des oberen Mantels und der daraus ge speisten ozeanischen Kruste stammen. Es galt also, das Material zu überprüfen, das die Beziehungen der Erzlagerstätten zur Geochemie ihrer kontinentalen Um gebung oder zur Geochemie des Ozeanbodens zeigt. Dies kann zugleich auch Bei träge ergeben zu dem Problem der modernen Iateralsekretionären Lagerstätten bildung. Die wirkungsvollste Art, sich bei der heutigen großen Menge von Literatur über ein komplexes Thema zu informieren, ist, kompetente Leute zusammenzu bitten, damit sie darüber vortragen und diskutieren. Ich darf sagen, daß meinem Bedürfnis voll Genüge geleistet wurde und ich habe dafür all den lieben Kolle gen, die zum Teil von sehr weit nach Leoben gekommen sind, herzlichen Dank zu sagen. Alle Vorträge behandeln, ja man kann fast sagen, klären in ihrer Gesamt heit das aufgeworfene Problem. Ich möchte aber doch glauben und hoffen, daß nicht nur der Veranstalter, son dern auch die Teilnehmer von den Vorträgen und Diskussionen Nutzen hatten. Ein intensiver Gedankenaustausch war möglich, da die Teilnehmerzahl mit Ab sicht klein gehalten und auf spezielle Sad1kenner beschränkt war und da das Programm im Gegensatz zu vielen Kongressen weite Lücken für Diskussionen ließ. 188 pp. Englisch, Französisch, Deutsch.