Articoli correlati a Linear Programming Duality: An Introduction To Oriented...

Linear Programming Duality: An Introduction To Oriented Matroids - Brossura

Bachem, Achim; Kern, Walter

 
9783540554172: Linear Programming Duality: An Introduction To Oriented Matroids

Sinossi

Linear Programming Duality is one of the cornerstones in combinatorial optimization. The book is written by two authors who have been working in the field of combinatorial optimization for many years. They give an elementary introduction to the theory of oriented matroids. Their approach clarifies the theoretical basis of Linear Programming and simplifies the proofs of standard results. The book contains numerous figures and the authors have included suggestions for further reading after each chapter.

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Dalla quarta di copertina

The main theorem of Linear Programming Duality, relating a "pri­ mal" Linear Programming problem to its "dual" and vice versa, can be seen as a statement about sign patterns of vectors in complemen­ tary subspaces of Rn. This observation, first made by R.T. Rockafellar in the late six­ ties, led to the introduction of certain systems of sign vectors, called "oriented matroids". Indeed, when oriented matroids came into being in the early seventies, one of the main issues was to study the fun­ damental principles underlying Linear Progra.mrning Duality in this abstract setting. In the present book we tried to follow this approach, i.e., rather than starting out from ordinary (unoriented) matroid theory, we pre­ ferred to develop oriented matroids directly as appropriate abstrac­ tions of linear subspaces. Thus, the way we introduce oriented ma­ troids makes clear that these structures are the most general -and hence, the most simple -ones in which Linear Programming Duality results can be stated and proved. We hope that this helps to get a better understanding of LP-Duality for those who have learned about it before und a good introduction for those who have not.

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