### The(~)-good congruences on normal ortho-u-monoids

WU Dan-dan, GONG Chun-mei*

1. Department of Mathematics, Xian University of Architecture and Technology, Xian 710055, Shaanxi, China
• Published:2019-04-08

Abstract: (~)-good congruences on normal ortho-u-monoids are characterized by means of(~)-good congruence pairs. The results about congruences on normal orthogroups in regular semigroups are generalized to(~)-semiabundant semigroups.

CLC Number:

• O152.7
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