LI Yong-hua
Abstract
Let S~* be a Q-regular *-transversal of S. A necessity and sufficiency condition that a congruence on S is a *-congruence is given, and then the maximum I-separating *-congruence is described.
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Let S~* be a Q-regular *-transversal of S. A necessity and sufficiency condition that a congruence on S is a *-congruence is given, and then the maximum I-separating *-congruence is described.
Key concepts: Congruence relation, Congruence (geometry), Mathematics, Transversal (combinatorics), Pure mathematics, Mathematical analysis, Geometry