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Esmaeil Feizi

Esmaeil Feizi

Academic rank: Assistant Professor
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Education: PhD.
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Faculty: Faculty of Science
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Research

Title
CONTRACTABILITY OF ULTRAPOWERS OF BANACH ALGEBRAS
Type
Presentation
Keywords
Banach algebra, ultrafilter, ultrapowre, amenability, ultra-amenability, contractability and ultra-contractability
Year
2012
Researchers Esmaeil Feizi ، Vania Khodakarami

Abstract

We study when contractability of Banach algebras are stable under the ultrapower consructions. We extend some general results of contractability of Banach algebras to ultrapowers of them. We investigate the relationship between ultra-contractability with both of contractability and ultra-amenability.