Convex and Set-Valued Analysis: Selected Topics

Convex and Set-Valued Analysis: Selected Topics

Convex and Set-Valued Analysis: Selected Topics

Convex and Set-Valued Analysis: Selected Topics

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Overview

This textbook is devoted to a compressed and self-contained exposition of two important parts of contemporary mathematics: convex and set-valued analysis. In the first part, properties of convex sets, the theory of separation, convex functions and their differentiability, properties of convex cones in finite- and infinite-dimensional spaces are discussed. The second part covers some important parts of set-valued analysis. There the properties of the Hausdorff metric and various continuity concepts of set-valued maps are considered. The great attention is paid also to measurable set-valued functions, continuous, Lipschitz and some special types of selections, fixed point and coincidence theorems, covering set-valued maps, topological degree theory and differential inclusions.

Contents:
Preface
Part I: Convex analysis
Convex sets and their properties
The convex hull of a set. The interior of convex sets
The affine hull of sets. The relative interior of convex sets
Separation theorems for convex sets
Convex functions
Closedness, boundedness, continuity, and Lipschitz property of convex functions
Conjugate functions
Support functions
Differentiability of convex functions and the subdifferential
Convex cones
A little more about convex cones in infinite-dimensional spaces
A problem of linear programming
More about convex sets and convex hulls
Part II: Set-valued analysis
Introduction to the theory of topological and metric spaces
The Hausdorff metric and the distance between sets
Some fine properties of the Hausdorff metric
Set-valued maps. Upper semicontinuous and lower semicontinuous set-valued maps
A base of topology of the spaceHc(X)
Measurable set-valued maps. Measurable selections and measurable choice theorems
The superposition set-valued operator
The Michael theorem and continuous selections. Lipschitz selections. Single-valued approximations
Special selections of set-valued maps
Differential inclusions
Fixed points and coincidences of maps in metric spaces
Stability of coincidence points and properties of covering maps
Topological degree and fixed points of set-valued maps in Banach spaces
Existence results for differential inclusions via the fixed point method
Notation
Bibliography
Index


Product Details

ISBN-13: 9783110460414
Publisher: De Gruyter
Publication date: 12/05/2016
Series: De Gruyter Textbook
Sold by: Barnes & Noble
Format: eBook
Pages: 209
File size: 5 MB
Age Range: 18 Years

About the Author

Aram Arutyunov, Moscow, Russia.Valerii Obukhovskii, Voronezh, Russia.

Table of Contents

Preface v

Part I Convex analysis

1 Convex sets and their properties 3

2 The convex hull of a set. The interior of convex sets 7

3 The affine hull of sets. The relative interior of convex sets 13

4 Separation theorems for convex sets 21

5 Convex functions 29

6 Closedness, boundedness, continuity, and Lipschitz property of convex functions 37

7 Conjugate functions 45

8 Support functions 51

9 Differentiability of convex functions and the subdifferential 59

10 Convex cones 69

11 A little more about convex cones in infinite-dimensional spaces 75

12 A problem of linear programming 79

13 More about convex sets and convex hulls 83

Part II Set-valued analysis

14 Introduction to the theory of topological and metric spaces 91

15 The Hausdorff metric and the distance between sets 95

16 Some fine properties of the Hausdorff metric 103

16.1 Hausdorff distance between sets satisfying the Bolzano-Weierstrass condition 103

16.2 Hausdorff distance between subsets of normed spaces 105

17 Set-valued maps. Upper semicontinuous and lower semicontinuous set-valued maps 109

18 A base of topology of the space Hc(X) 121

19 Measurable set-valued maps. Measurable selections and measurable choice theorems 123

20 The superposition set-valued operator 129

21 The Michael theorem and continuous selections. Lipschitz selections. Single-valued approximations 135

22 Special selections of set-valued maps 141

23 Differential inclusions 149

24 Fixed points and coincidences of maps in metric spaces 155

24.1 The case of single-valued maps 155

24.2 The case of set-valued maps 160

25 Stability of coincidence points and properties of covering maps 165

26 Topological degree and fixed points of set-valued maps in Banach spaces 171

26.1 Topological degree of single-valued maps 171

26.2 Topological degree of set-valued maps 180

27 Existence results for differential inclusions via the fixed point method 187

Notation 191

Bibliography 195

Index 199

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