• Title/Summary/Keyword: weak continuity

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FROM STRONG CONTINUITY TO WEAK CONTINUITY

  • Kim, Jae-Woon
    • Journal of the Chungcheong Mathematical Society
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    • v.14 no.1
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    • pp.29-40
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    • 2001
  • In this note, we get the conditions such that strong continuity ${\Rightarrow}$ weak continuity plus interiority condition( wc+ic), and continuity ${\Rightarrow}$ wc+ic are true. And we investigate some equivalent conditions with weak continuity, some properties of weak continuity. And we show that almost compactness is preserved by weakly continuous function, and we improve some known results with respect to strong continuity.

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VARIOUS CONTINUITIES OF A MAP f ; (X, k, TnX) → (Y, 2, TY) IN COMPUTER TOPOLOGY

  • HAN, SANG-EON
    • Honam Mathematical Journal
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    • v.28 no.4
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    • pp.591-603
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    • 2006
  • For a set $X{\subset}{\mathbb{Z}}^n$ let $(X,\;T^n_X)$ be the subspace of the Khalimsky n-dimensional space $({\mathbb{Z}}^n,\;T^n)$, $n{\in}N$. Considering a k-adjacency of $(X,\;T^n_X)$, we use the notation $(X,\;k,\;T^n_X)$. In this paper for a map $$f:(X,\;k,\;T^n_X){\rightarrow}(Y,\;2\;T_Y)$$, we find the condition that weak (k, 2)-continuity of the map f implies strong (k, 2)-continuity of f.

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ON THE QUASI-(θ, s)-CONTINUITY

  • Kim, Seungwook
    • Korean Journal of Mathematics
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    • v.20 no.4
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    • pp.441-449
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    • 2012
  • The quasi-(${\theta}$, s)-continuity is a weakened form of the weak (${\theta}$, s)-continuity and equivalent to the weak quasi-continuity. The basic properties of those functions are investigated in concern with the other weakened continuous functions. It turns out that the open property of a function and the extremall disconnectedness of the spaces are crucial tools for the survey of these functions.

SOME GENERALIZATIONS OF WEAKLY M-SEMI-CONTINUOUS AND WEAKLY M-PRECONTINUOUS FUNCTIONS

  • Noiri, Takashi;Popa, Valeriu
    • Journal of the Chungcheong Mathematical Society
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    • v.29 no.2
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    • pp.229-253
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    • 2016
  • As a generalization of (i, j)-weakly m-continuous functions [43], we introduce the notion of weakly M(i, j)-continuous functions and obtain many characterizations and some properties of the functions. We show that the function is a unified form of some functions between m-spaces and certain kinds of weakly continuous functions in bitopological spaces.

ON WEAKLY sγ-CONTINUOUS FUNCTIONS

  • Min, Won Keun
    • Journal of the Chungcheong Mathematical Society
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    • v.22 no.3
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    • pp.353-358
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    • 2009
  • In [6], the author introduced the concepts of $s\gamma$-open sets and $s\gamma$-continuous functions. In this paper, we introduce the concept of weak $s\gamma$-continuity which is a generalization of $s\gamma$-continuity and weak continuity and investigate characterizations for such functions.

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