Yazar "Noiri, Takashi" seçeneğine göre listele

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    Almost b-continuous functions
    (PERGAMON-ELSEVIER SCIENCE LTD, 2009) Keskin, Aynur; Noiri, Takashi
    We introduce the notion of almost b-continuous functions and investigate several properties of these functions. This notion is stronger than almost beta-continuous functions and is weaker than both almost pre-continuous functions and almost send-continuous functions. (C) 2007 Elsevier Ltd. All rights reserved.
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    Almost contra-g-continuous functions
    (PERGAMON-ELSEVIER SCIENCE LTD, 2009) Keskin, Aynur; Noiri, Takashi
    In this paper, we introduce and investigate the notion of almost contra-g-continuous functions which is weaker than both notions of contra-continuous functions [Dontchev J. Contra-continuous functions and strongly S-closed mappings. Int J Math Math Sci 1996; 19: 303-10] and (theta, s)-continuous functions [Joseph JK, Kwak MK. On S-closed spaces. Proc Am Math Soc 1980; 80: 341-8.] in topological spaces. We discuss the relationships with some other related functions. At the same time, we show that almost-g-continuity and (LC, s)-continuity are independent of each other. Crown Copyright (C) 2008 Published by Elsevier Ltd. All rights reserved.
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    ON gamma-R-0 AND gamma-R-1 SPACES
    (UNIV MISKOLC INST MATH, 2009) Keskin, Aynur; Noiri, Takashi
    In this paper, we investigate further properties of gamma-R-0 and gamma-R-1 spaces due to Ekici.
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    Some functions defined by alpha-open and preopen sets
    (PERGAMON-ELSEVIER SCIENCE LTD, 2008) Beceren, Yusuf; Noiri, Takashi
    In this paper we introduce and investigate new classes of generalizations of non-continuous functions, obtain some of their properties and hold decompositions of alpha-irresoluteness and semi alpha-irresoluteness in topological spaces. (C) 2006 Elsevier Ltd. All rights reserved.
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    Some functions defined by semi-open and beta-open sets
    (PERGAMON-ELSEVIER SCIENCE LTD, 2008) Beceren, Yusuf; Noiri, Takashi
    We introduce and study new classes of generalizations of non-continuous functions in topological spaces and give some of their properties. Moreover, we have decompositions of strong alpha-continuity and irresoluteness. (C) 2006 Elsevier Ltd. All rights reserved.