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On some theorems of Richter and Stephani for symmetrical quasicontinuity and symmetrical cliquishness - MaRDI portal

On some theorems of Richter and Stephani for symmetrical quasicontinuity and symmetrical cliquishness (Q930105)

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scientific article; zbMATH DE number 5291255
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English
On some theorems of Richter and Stephani for symmetrical quasicontinuity and symmetrical cliquishness
scientific article; zbMATH DE number 5291255

    Statements

    On some theorems of Richter and Stephani for symmetrical quasicontinuity and symmetrical cliquishness (English)
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    20 June 2008
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    The author proves statements similar to results contained in the paper of \textit{Ch. Richter} and \textit{I. Stephani} [Real Anal. Exch. 29, No. 1, 299--322 (2003-2004; Zbl 1068.54015)] for the Piotrowski-Vallin quasi-continuities. The paper finishes with three open problems.
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    Symmetrical quaiscontinuity
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    symmetrical cliquishness
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    semi-open
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    cluster sets
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