$\infty$-Convex sets and their applications to the proof of certain classical theorems of functional analysis

Author
T. Banakh, W.E. Lyantse, Ya.V. Mykytyuk
Department of Mathematics, Lviv University,Universytetska 1, Lviv, 290602,
Abstract
Using the notion of an $\infty$-convex set we present a new geometric proof of two classical theorems of functional analysis: Banach Open Mapping Principle and Banach-Mazur Theorem on quotients of $l_1$.
Keywords
Banach Open Mapping Principle, Banach-Mazur theorem, functional analysis, convexity in Banach spaces
DOI
doi:10.30970/ms.11.1.83-84
Reference
1. S. Banach Theorie des operations lineaires,addr Warszawa, PWN–1932

2. S. Banach, S. Mazur Zur Theorie der linearen Dimension// Studia Math.V. 4–1933p.100–112

Pages
83-84
Volume
11
Issue
1
Year
1999
Journal
Matematychni Studii
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