Compact Convex Sets and Boundary Integrals - Ergebnisse Der Mathematik Und Ihrer Grenzgebiete. 2. Folge - E.m. Alfsen - Grāmatas - Springer-Verlag Berlin and Heidelberg Gm - 9783642650116 - 2011. gada 11. novembris
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E.m. Alfsen
Compact Convex Sets and Boundary Integrals - Ergebnisse Der Mathematik Und Ihrer Grenzgebiete. 2. Folge Softcover Reprint of the Original 1st Ed. 1971 edition

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The importance of convexity arguments in functional analysis has long been realized, but a comprehensive theory of infinite-dimensional convex sets has hardly existed for more than a decade. In fact, the integral representation theorems of Choquet and Bishop -de Leeuw together with the uniqueness theorem of Choquet inaugurated a new epoch in infinite-dimensional convexity. Initially considered curious and tech- nically difficult, these theorems attracted many mathematicians, and the proofs were gradually simplified and fitted into a general theory. The results can no longer be considered very "deep" or difficult, but they certainly remain all the more important. Today Choquet Theory provides a unified approach to integral representations in fields as diverse as potential theory, probability, function algebras, operator theory, group representations and ergodic theory. At the same time the new concepts and results have made it possible, and relevant, to ask new questions within the abstract theory itself. Such questions pertain to the interplay between compact convex sets K and their associated spaces A(K) of continuous affine functions; to the duality between faces of K and appropriate ideals of A(K); to dominated- extension problems for continuous affine functions on faces; and to direct convex sum decomposition into faces, as well as to integral for- mulas generalizing such decompositions. These problems are of geometric interest in their own right, but they are primarily suggested by applica- tions, in particular to operator theory and function algebras.

212 pages, biography

Mediji Grāmatas     Paperback Book   (Grāmata ar mīksto vāku un līmēto muguru)
Izlaists 2011. gada 11. novembris
ISBN13 9783642650116
Izdevēji Springer-Verlag Berlin and Heidelberg Gm
Lapas 212
Izmēri 156 × 234 × 12 mm   ·   326 g
Valoda Angļu  

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