JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2019, Vol. 54 ›› Issue (4): 45-53.doi: 10.6040/j.issn.1671-9352.0.2018.225

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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

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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.

Key words: (~)-good congruences, normal ortho-u-monoids, (~)-good congruence pair

CLC Number: 

  • O152.7
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