Browsing by Author "Seferoglu, H."
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Article The Banach Algebras Generated by Operators With One-Point Spectrum(Springer, 2011) Seferoglu, H.; Simsek, N.In this article, we present some results related to the structure of Banach algebras generated by operators with one-point spectrum.Article Generators of C0-Groups With Smallest Spectra(Wiley-v C H verlag Gmbh, 2007) Seferoglu, H.Let T = {T (t)}(t is an element of R) be a Co-group on a Banach space X with generator A. Under what conditions the assumption sigma (A) = {0} implies that A = 0 ? This is called "A = 0" problem. In this paper we present some results related to this problem. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.