Keimel, Klaus.

Ordered Cones and Approximation [electronic resource] / by Klaus Keimel, Walter Roth. - Berlin, Heidelberg : Springer Berlin Heidelberg, 1992. - VI, 142 p. online resource. - Lecture Notes in Mathematics, 1517 0075-8434 ; . - Lecture Notes in Mathematics, 1517 .

Locally convex cones -- Uniformly continuous operators and the dual cone -- Subcones -- Approximation -- Nachbin cones -- Quantitative estimates.

This book presents a unified approach to Korovkin-type approximation theorems. It includes classical material on the approximation of real-valuedfunctions as well as recent and new results on set-valued functions and stochastic processes, and on weighted approximation. The results are notonly of qualitative nature, but include quantitative bounds on the order of approximation. The book is addressed to researchers in functional analysis and approximation theory as well as to those that want to applythese methods in other fields. It is largely self- contained, but the readershould have a solid background in abstract functional analysis. The unified approach is based on a new notion of locally convex ordered cones that are not embeddable in vector spaces but allow Hahn-Banach type separation and extension theorems. This concept seems to be of independent interest.

9783540470793

10.1007/BFb0089190 doi


Mathematics.
Global analysis (Mathematics).
Mathematics.
Analysis.

QA299.6-433

515
The Institute of Mathematical Sciences, Chennai, India

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