A Nonlinear Transfer Technique for Renorming
Moltó, Aníbal.
A Nonlinear Transfer Technique for Renorming [electronic resource] / by Aníbal Moltó, José Orihuela, Stanimir Troyanski, Manuel Valdivia. - XI, 148 p. online resource. - Lecture Notes in Mathematics, 1951 0075-8434 ; . - Lecture Notes in Mathematics, 1951 .
?-Continuous and Co-?-continuous Maps -- Generalized Metric Spaces and Locally Uniformly Rotund Renormings -- ?-Slicely Continuous Maps -- Some Applications -- Some Open Problems.
Abstract topological tools from generalized metric spaces are applied in this volume to the construction of locally uniformly rotund norms on Banach spaces. The book offers new techniques for renorming problems, all of them based on a network analysis for the topologies involved inside the problem. Maps from a normed space X to a metric space Y, which provide locally uniformly rotund renormings on X, are studied and a new frame for the theory is obtained, with interplay between functional analysis, optimization and topology using subdifferentials of Lipschitz functions and covering methods of metrization theory. Any one-to-one operator T from a reflexive space X into c0 (T) satisfies the authors' conditions, transferring the norm to X. Nevertheless the authors' maps can be far from linear, for instance the duality map from X to X* gives a non-linear example when the norm in X is Fréchet differentiable. This volume will be interesting for the broad spectrum of specialists working in Banach space theory, and for researchers in infinite dimensional functional analysis.
9783540850311
10.1007/978-3-540-85031-1 doi
Global differential geometry.
Functional analysis.
Differential Geometry.
Functional Analysis.
QA641-670
516.36
A Nonlinear Transfer Technique for Renorming [electronic resource] / by Aníbal Moltó, José Orihuela, Stanimir Troyanski, Manuel Valdivia. - XI, 148 p. online resource. - Lecture Notes in Mathematics, 1951 0075-8434 ; . - Lecture Notes in Mathematics, 1951 .
?-Continuous and Co-?-continuous Maps -- Generalized Metric Spaces and Locally Uniformly Rotund Renormings -- ?-Slicely Continuous Maps -- Some Applications -- Some Open Problems.
Abstract topological tools from generalized metric spaces are applied in this volume to the construction of locally uniformly rotund norms on Banach spaces. The book offers new techniques for renorming problems, all of them based on a network analysis for the topologies involved inside the problem. Maps from a normed space X to a metric space Y, which provide locally uniformly rotund renormings on X, are studied and a new frame for the theory is obtained, with interplay between functional analysis, optimization and topology using subdifferentials of Lipschitz functions and covering methods of metrization theory. Any one-to-one operator T from a reflexive space X into c0 (T) satisfies the authors' conditions, transferring the norm to X. Nevertheless the authors' maps can be far from linear, for instance the duality map from X to X* gives a non-linear example when the norm in X is Fréchet differentiable. This volume will be interesting for the broad spectrum of specialists working in Banach space theory, and for researchers in infinite dimensional functional analysis.
9783540850311
10.1007/978-3-540-85031-1 doi
Global differential geometry.
Functional analysis.
Differential Geometry.
Functional Analysis.
QA641-670
516.36