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Homological Methods in Banach Space Theory [Kõva köide]

(Universidad de Extremadura, Spain), (Universidad de Extremadura, Spain)
  • Formaat: Hardback, 500 pages, kõrgus x laius x paksus: 235x158x39 mm, kaal: 980 g, Worked examples or Exercises
  • Sari: Cambridge Studies in Advanced Mathematics
  • Ilmumisaeg: 26-Jan-2023
  • Kirjastus: Cambridge University Press
  • ISBN-10: 1108478581
  • ISBN-13: 9781108478588
  • Formaat: Hardback, 500 pages, kõrgus x laius x paksus: 235x158x39 mm, kaal: 980 g, Worked examples or Exercises
  • Sari: Cambridge Studies in Advanced Mathematics
  • Ilmumisaeg: 26-Jan-2023
  • Kirjastus: Cambridge University Press
  • ISBN-10: 1108478581
  • ISBN-13: 9781108478588
This book gives functional analysts a new perspective on their field and new tools to tackle its problems. It presents and explain many powerful results from the last half century and uses them to solve classical and new results in the theory of (quasi-) Banach spaces, while introducing the algebraic techniques from scratch with concrete examples.

Many researchers in geometric functional analysis are unaware of algebraic aspects of the subject and the advances they have permitted in the last half century. This book, written by two world experts on homological methods in Banach space theory, gives functional analysts a new perspective on their field and new tools to tackle its problems. All techniques and constructions from homological algebra and category theory are introduced from scratch and illustrated with concrete examples at varying levels of sophistication. These techniques are then used to present both important classical results and powerful advances from recent years. Finally, the authors apply them to solve many old and new problems in the theory of (quasi-) Banach spaces and outline new lines of research. Containing a lot of material unavailable elsewhere in the literature, this book is the definitive resource for functional analysts who want to know what homological algebra can do for them.

Arvustused

'This comprehensive treatment of Homological Methods in Banach Space Theory by two authors who are among the most adept at using algebraic tools in functional analysis is a must for every mathematician who is interested in the geometry of Banach spaces.' William B. Johnson, Texas A&M University 'Commutative diagrams are a natural and concise method of encoding information about various mathematical objects, and they deserve to better known. Together with other categorical constructions such as ultrapowers, pullbacks and pushouts, they provide a big picture view and a framework for further progress. This book gives a comprehensive account of the applications of such techniques to numerous aspects of Banach spaces.' David Yost, Federation University 'This masterpiece seemingly is an excellent math book saturated with lush insights and marvellous perspectives on Banach spaces. But start to read it. When furniture and people start to appear to you as diagrams you will realize that you are in the middle of a fascinating wildlife event.' Piotr Koszmider, Institute of Mathematics of the Polish Academy of Sciences

Muu info

Approaches Banach space theory using methods from homological algebra, with concrete examples and proofs of many new and classical results.
Preface ix
Preliminaries 1(8)
1 Complemented Subspaces of Banach Spaces
9(37)
1.1 Banach and Quasi-Banach Spaces
9(4)
1.2 Complemented Subspaces
13(3)
1.3 Uncomplemented Subspaces
16(3)
1.4 Local Properties and Techniques
19(6)
1.5 The Dunford--Pettis, Grothendieck, Pelczynski and Rosenthal Properties
25(1)
1.6 C(K)-Spaces and Their Complemented Subspaces
26(3)
1.7 Sobczyk's Theorem and Its Derivatives
29(7)
1.8 Notes and Remarks
36(10)
1.8.1 Topological Stuff
36(2)
1.8.2 Orlicz, Young, Fenchel and L0 Too
38(1)
1.8.3 Ultrapowers of Lp When 0 < p < 1
39(3)
1.8.4 Sobczyk's Theorem Strikes Back
42(4)
2 The Language of Homology
46(82)
2.1 Exact Sequences of Quasi-Banach Spaces
48(6)
2.2 Basic Examples of Exact Sequences
54(13)
2.3 Topologically Exact Sequences
67(3)
2.4 Categorical Constructions for Absolute Beginners
70(2)
2.5 Pullback and Pushout
72(3)
2.6 Pushout and Exact Sequences
75(3)
2.7 Projective Presentations: the Universal Property of Lp
78(3)
2.8 Pullbacks and Exact Sequences
81(1)
2.9 Injective Presentations: the Universal Property of ∞
82(2)
2.10 All about That Pullback/Pushout Diagram
84(10)
2.11 Diagonal and Parallel Principles
94(4)
2.12 Homological Constructions Appearing in Nature
98(7)
2.13 The Device
105(6)
2.14 Extension and Lifting of Operators
111(8)
2.15 Notes and Remarks
119(9)
2.15.1 Categorical Limits
119(1)
2.15.2 How to Draw More Diagrams
120(4)
2.15.3 Amalgamation of Sequences
124(1)
2.15.4 Categories of Short Exact Sequences
125(3)
3 Quasilinear Maps
128(69)
3.1 An Introduction to Quasilinear Maps
129(2)
3.2 Quasilinear Maps in Action
131(7)
3.3 Quasilinear Maps versus Exact Sequences
138(11)
3.4 Local Convexity of Twisted Sums and K-Spaces
149(5)
3.5 The Pullback and Pushout in Quasilinear Terms
154(1)
3.6 Spaces of Quasilinear Maps
155(6)
3.7 Homological Properties of Lp and Lp When 0 < p < 1
161(6)
3.8 Exact Sequences of Banach Spaces and Duality
167(9)
3.9 Different Versions of a Quasilinear Map
176(3)
3.10 Linearisation of Quasilinear Maps
179(2)
3.11 The Type of Twisted Sums
181(4)
3.12 A Glimpse of Centralizers
185(5)
3.13 Notes and Remarks
190(7)
3.13.1 Domanski's Work on Quasilinear Maps
190(3)
3.13.2 A Cohomological Approach to Quasilinearity
193(1)
3.13.3 Table of Correspondences between Diagrams and Quasilinear Maps
194(3)
4 The Functor Ext and the Homology Sequences
197(46)
4.1 The Functor Ext
198(6)
4.2 The Homology Sequences
204(8)
4.3 Homology in Quasilinear Terms
212(4)
4.4 Alternative Constructions of Ext
216(8)
4.5 Topological Aspects of Ext
224(10)
4.6 Notes and Remarks
234(9)
4.6.1 Adjoint Functors
234(3)
4.6.2 Derived Functors
237(3)
4.6.3 Unknown Knowns about Ext2
240(1)
4.6.4 Open Problems about the Topology of Ext
241(2)
5 Local Methods in the Theory of Twisted Sums
243(44)
5.1 Local Splitting
244(14)
5.2 Uniform Boundedness Principles for Exact Sequences
258(12)
5.3 The Mysterious Role of the BAP
270(13)
5.4 Notes and Remarks
283(4)
5.4.1 Which Banach Spaces Are K-Spaces?
283(1)
5.4.2 Twisting a Few Exotic Banach Spaces
284(3)
6 Fraisse Limits by the Pound
287(42)
6.1 Fraisse Classes and Fraisse Sequences
288(2)
6.2 Almost Universal Disposition
290(9)
6.3 Almost Universal Complemented Disposition
299(17)
6.4 A Universal Operator on Gp
316(8)
6.5 Notes and Remarks
324(5)
6.5.1 What If ε = 0?
324(1)
6.5.2 Before Gp Spaces Fade Out
325(1)
6.5.3 Fraisse Classes of Banach Spaces
326(3)
7 Extension of Operators, Isomorphisms and Isometries
329(43)
7.1 Operators: Extensible and UFO Spaces
331(5)
7.2 Isomorphisms: the Automorphic Space Problem
336(12)
7.3 Isometries: Universal Disposition
348(6)
7.4 Positions in Banach Spaces
354(11)
7.5 Notes and Remarks
365(7)
7.5.1 Isomorphic but Different Twisted Sums
365(1)
7.5.2 How Many Twisted Sums of Two Spaces Exist?
366(2)
7.5.3 Moving towards the Automorphic Space Problem
368(1)
7.5.4 The Product of Spaces of (Almost) Universal Disposition
369(3)
8 Extension of C(K)-Valued Operators
372(72)
8.1 Zippin Selectors
374(4)
8.2 The Lindenstrauss-Pelczyriski Theorem
378(5)
8.3 Kalton's Approach to the L-Extension Property
383(11)
8.4 Sequence Spaces with the L-Extension Property
394(6)
8.5 L-Extensible Spaces
400(11)
8.6 The Dark Side of the Johnson--Zippin Theorem
411(13)
8.7 The Astounding Story behind the CCKY Problem
424(10)
8.8 Notes and Remarks
434(10)
8.8.1 Homogeneous Zippin Selectors
434(2)
8.8.2 Lindenstrauss-Valued Extension Results
436(1)
8.8.3 The Last Stroke on the Extension of L-Valued Lipschitz Maps
437(3)
8.8.4 Property (M) and M-Ideals
440(1)
8.8.5 Set Theoretic Axioms and Twisted Sum Affairs
440(4)
9 Singular Exact Sequences
444(24)
9.1 Basic Properties and Techniques
445(6)
9.2 Singular Quasilinear Maps
451(1)
9.3 Amalgamation Techniques
452(10)
9.4 Notes and Remarks
462(6)
9.4.1 Super Singularity
462(1)
9.4.2 Disjoint Singularity
463(2)
9.4.3 Cosingularity
465(1)
9.4.4 The Basic Sequence Problem
465(3)
10 Back to Banach Space Theory
468(53)
10.1 Vector-Valued Versions of Sobczyk's Theorem
468(3)
10.2 Polyhedral ∞-Spaces
471(2)
10.3 Lipschitz and Uniformly Homeomorphic ∞-Spaces
473(3)
10.4 Properties of Kernels of Quotient Maps on 1 Spaces
476(8)
10.5 3-Space Problems
484(11)
10.6 Extension of ∞-Valued Operators
495(7)
10.7 Kadec Spaces
502(3)
10.8 The Kalton--Peck Spaces
505(11)
10.9 The Properties of Z2 Explained by Itself
516(5)
Bibliography 521(22)
Index 543
Félix Cabello Sánchez is Professor of Mathematics at the Universidad de Extremadura. He is co-author of the monograph Separably Injective Banach Spaces (2016). Jesús M. F. Castillo is Professor of Mathematics at the Universidad de Extremadura. He is co-author of the monographs Three-space Problems in Banach Space Theory (1997) and Separably Injective Banach Spaces (2016).