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a note on essentially left ϕ-contractible banach algebras
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نویسنده
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almasi isaac ,sahami amir
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منبع
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analytical and numerical solutions for nonlinear equations - 2020 - دوره : 5 - شماره : 1 - صفحه:23 -27
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چکیده
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In this note, we show that [11, corollary 3.2] is not always true. in fact, we characterize essential left ϕ-contractibility of group algebras in terms of compactness of its related locally compact group. also, we show that for any compact commutative group g, l^2(g) is always essentially left ϕ-contractible. we discuss the essential left ϕ-contractibility of some fourier algebras.
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کلیدواژه
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group algebra · essential left ϕ-contractible · banach algebra
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آدرس
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ilam university, faculty of basic sciences, department of mathematics, iran, ilam university, faculty of basic sciences, department of mathematics, iran
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پست الکترونیکی
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a.sahami@ilam.ac.ir
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انقباض پذیری
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Authors
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الماسی اسحاق ,سهامی امیر
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Abstract
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Keywords
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Essential left $phi$-contractible،
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