Alfsen erik (28 Ergebnisse)

Zustand: Good. Volume 57. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,550grams, ISBN:3540050906. …

Zustand: Good. Volume 57. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,550grams, ISBN:3540050906. …

Zustand: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.

Softcover. Zustand: Très bon. Ancien livre de bibliothèque avec équipements. Edition 1971. Tome 57. Ammareal reverse jusqu'à 15% du prix net de cet article à des organisations caritatives. ENGLISH DESCRIPTION Book Condition: Used, Very good. Former library book. Edition 1971. Volume 57. Ammareal gives back up to 15% of this item's net price to charity organizations.…

1.Auflage.. IX, 210 Seiten Einband etwas berieben und lichtrandig, Bibl.Ex., innen guter und sauberer Zustand 9783540050902 Sprache: Englisch Gewicht in Gramm: 450 8° , Leinen- Hardcover/Pappeinband.

Zustand: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.

IX, 210 S. mit 3 Figuren, (210 pp. with 3 Figures), 3540050906 Sprache: Englisch Gewicht in Gramm: 450 Groß 8°, Original-Leinen, Bibliotheks-Exemplar (ordungsgemäß entwidmet), Stempel auf Titel, insgesamt gutes und innen sauberes Exemplar.

Zustand: New. In English.

Zustand: New. In English.

Zustand: New. In English.

Zustand: New. In English.

Zustand: New. In English.

Paperback. Zustand: Brand New. reprint edition. 224 pages. 9.25x6.10x0.50 inches. In Stock.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - In this book we give a complete geometric description of state spaces of operator algebras, Jordan as well as associative. That is, we give axiomatic characterizations of those convex sets that are state spaces of C\*-algebras and von Neumann algebras, together with such characterizations for the normed Jordan algebras called JB-algebras and JBW-algebras. These non associative algebras generalize C\*-algebras and von Neumann algebras re spectively, and the characterization of their state spaces is not only of interest in itself, but is also an important intermediate step towards the characterization of the state spaces of the associative algebras. This book gives a complete and updated presentation of the character ization theorems of [10]' [11] and [71]. Our previous book State spaces of operator algebras: basic theory, orientations and C\*-products, referenced as [AS] in the sequel, gives an account of the necessary prerequisites on C\*-algebras and von Neumann algebras, as well as a discussion of the key notion of orientations of state spaces. For the convenience of the reader, we have summarized these prerequisites in an appendix which contains all relevant definitions and results (listed as (AI), (A2), . ), with reference back to [AS] for proofs, so that this book is self-contained.…

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - In this book we give a complete geometric description of state spaces of operator algebras, Jordan as well as associative. That is, we give axiomatic characterizations of those convex sets that are state spaces of C\*-algebras and von Neumann algebras, together with such characterizations for the normed Jordan algebras called JB-algebras and JBW-algebras. These non associative algebras generalize C\*-algebras and von Neumann algebras re spectively, and the characterization of their state spaces is not only of interest in itself, but is also an important intermediate step towards the characterization of the state spaces of the associative algebras. This book gives a complete and updated presentation of the character ization theorems of [10]' [11] and [71]. Our previous book State spaces of operator algebras: basic theory, orientations and C\*-products, referenced as [AS] in the sequel, gives an account of the necessary prerequisites on C\*-algebras and von Neumann algebras, as well as a discussion of the key notion of orientations of state spaces. For the convenience of the reader, we have summarized these prerequisites in an appendix which contains all relevant definitions and results (listed as (AI), (A2), . ), with reference back to [AS] for proofs, so that this book is self-contained.…

Zustand: Used. pp. 488 Illus.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - 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.…

Paperback. Zustand: Brand New. 368 pages. 9.25x6.10x0.83 inches. In Stock.

Zustand: New. 2012. Paperback. . . . . . Books ship from the US and Ireland.

Zustand: New. 2012. Softcover reprint of the original 1st ed. 2003. paperback. . . . . . Books ship from the US and Ireland.

Zustand: Used. pp. 488.

Zustand: New. 2001. Hardcover. . . . . . Books ship from the US and Ireland.

hardcover. Zustand: Good. Ex-library copy with usual markings. Shows minor wear.

Taschenbuch. Zustand: Neu. State Spaces of Operator Algebras | Basic Theory, Orientations, and C*-products | Erik M. Alfsen (u. a.) | Taschenbuch | xii | Englisch | 2012 | Birkhäuser | EAN 9781461266341 | Verantwortliche Person für die EU: Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu. …

Zustand: Hervorragend. Zustand: Hervorragend | Sprache: Englisch | Produktart: Bücher | 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.…

Softcover. Zustand: gut. 1971. Compact Convex Sets and Boundary Integrals (Ergebnisse der Mathematik und ihrer Grenzgebiete. 2. Folge, Band 57) In deutscher Sprache. pages.

Zustand: gut. 1971. Compact Convex Sets and Boundary Integrals. (= Ergebnisse der Mathematik und Ihrer Grenzgebiete, Band 57). In deutscher Sprache. pages.

Visits to Italy by No rwegian artists and scholars, and the research in the 1920Æs by Professor LÆOrange set the stage for the creation of the Norwegian Institute in Rome. This scholarly book contains in-depth chapters devoted to an analysis of the many antiquities, classical pieces, and medieval art comprising the collection of the institute., Norwegian w/English summary, Year1996, Illust. B/W161, Illust. Color, ISBN 8290744331, Code 2667. Hardbound, Not in perfect condition., Bibl. Pages 289, Size 10 3/4öx8 1/2ö.…