• Journal of the Chungcheong Mathematical Society
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• v.19 no.4
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• pp.365-373
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• 2006

In this paper four regular relations, R, $L^*$, $M^*$ and $Q^*$ in a transformation group (X, T) are defined and some of their properties are studied.

• Journal of the Chungcheong Mathematical Society
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• v.20 no.4
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• pp.495-501
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• 2007

In this paper the relative regionally regular relation is defined and it will be given the necessary and sufficient conditions for the relation to be an equivalence relation.