Local uniform convexity and Kadec-Klee type properties in K-interpolation spaces I: General Theory

We present a systematic study of the interpolation of local uniform convexity and Kadec-Klee type properties in K-interpolation spaces. Using properties of the K-functional of J.Peetre, our approach is based on a detailed analysis of properties of a Banach couple and properties of a K-interpolation...

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Main Authors: Peter G. Dodds, Theresa K. Dodds, Alexander A. Sedaev, Fyodor A. Sukochev
Format: Article
Language:English
Published: Wiley 2004-01-01
Series:Journal of Function Spaces and Applications
Online Access:http://dx.doi.org/10.1155/2004/678358
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author Peter G. Dodds
Theresa K. Dodds
Alexander A. Sedaev
Fyodor A. Sukochev
author_facet Peter G. Dodds
Theresa K. Dodds
Alexander A. Sedaev
Fyodor A. Sukochev
author_sort Peter G. Dodds
collection DOAJ
description We present a systematic study of the interpolation of local uniform convexity and Kadec-Klee type properties in K-interpolation spaces. Using properties of the K-functional of J.Peetre, our approach is based on a detailed analysis of properties of a Banach couple and properties of a K-interpolation functional which guarantee that a given K-interpolation space is locally uniformly convex, or has a Kadec-Klee property. A central motivation for our study lies in the observation that classical renorming theorems of Kadec and of Davis, Ghoussoub and Lindenstrauss have an interpolation nature. As a partiular by-product of our study, we show that the theorem of Kadec itself, that each separable Banach space admits an equivalent locally uniformly convex norm, follows directly from our approach.
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spelling doaj-art-f5a6a963d16746edb7b6d4ad2e06e1242025-02-03T06:07:19ZengWileyJournal of Function Spaces and Applications0972-68022004-01-012212517310.1155/2004/678358Local uniform convexity and Kadec-Klee type properties in K-interpolation spaces I: General TheoryPeter G. Dodds0Theresa K. Dodds1Alexander A. Sedaev2Fyodor A. Sukochev3School of Informatics and Engineering, Flinders University, Bedford Park, SA 5042, AustraliaSchool of Informatics and Engineering, Flinders University, Bedford Park, SA 5042, AustraliaDepartment of Mathematics, Voronezh State University of Architecture and Civil Engineering, 394006 Voronezh, 20-letiya Oktyabrya 84, RussiaSchool of Informatics and Engineering, Flinders University, Bedford Park, SA 5042, AustraliaWe present a systematic study of the interpolation of local uniform convexity and Kadec-Klee type properties in K-interpolation spaces. Using properties of the K-functional of J.Peetre, our approach is based on a detailed analysis of properties of a Banach couple and properties of a K-interpolation functional which guarantee that a given K-interpolation space is locally uniformly convex, or has a Kadec-Klee property. A central motivation for our study lies in the observation that classical renorming theorems of Kadec and of Davis, Ghoussoub and Lindenstrauss have an interpolation nature. As a partiular by-product of our study, we show that the theorem of Kadec itself, that each separable Banach space admits an equivalent locally uniformly convex norm, follows directly from our approach.http://dx.doi.org/10.1155/2004/678358
spellingShingle Peter G. Dodds
Theresa K. Dodds
Alexander A. Sedaev
Fyodor A. Sukochev
Local uniform convexity and Kadec-Klee type properties in K-interpolation spaces I: General Theory
Journal of Function Spaces and Applications
title Local uniform convexity and Kadec-Klee type properties in K-interpolation spaces I: General Theory
title_full Local uniform convexity and Kadec-Klee type properties in K-interpolation spaces I: General Theory
title_fullStr Local uniform convexity and Kadec-Klee type properties in K-interpolation spaces I: General Theory
title_full_unstemmed Local uniform convexity and Kadec-Klee type properties in K-interpolation spaces I: General Theory
title_short Local uniform convexity and Kadec-Klee type properties in K-interpolation spaces I: General Theory
title_sort local uniform convexity and kadec klee type properties in k interpolation spaces i general theory
url http://dx.doi.org/10.1155/2004/678358
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