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Found 12 Documents (Results 1–12)

Stability of isometries between groups of invertible elements in Banach algebras. (English. Russian original) Zbl 1332.46046

Funct. Anal. Appl. 49, No. 2, 106-109 (2015); translation from Funkts. Anal. Prilozh. 49, No. 2, 34-38 (2015).
MSC:  46H05 46B04 39B82
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Solution of a stability problem of Ulam. (English) Zbl 0878.46032

Rassias, John M. (ed.), Functional analysis, approximation theory and numerical analysis. Dedicated to Stefan Banach on his 100th birthday, Alexander Markowiç Ostrowski on his 99th birthday, Stanislaw Marcin Ulam on his 83rd birthday. Singapore: World Scientific. 241-249 (1994).
MSC:  46G05 41A65
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