利用弱逆和核迹方法，刻画了毕竟纯整半群上的矩形群同余。
The rectangular group congruences on eventually orthodox semigroup were characterized by means of weak inverse and kernel-trace approach.
刻画了弱逆半群s上的最大幂等元分离同余和最小群同余。
In this paper, the greatest idempotent separating congruence and the minimum group congruence on a weakly inverse semigroup s are characterized.
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