C(ω),C_α(ω)中的几类同余
Some Congruences in C(ω),C α(ω)
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摘要: 本文确定了一般拓扑空间X的连续自映射半群S(X)上对应于泛关系的几类同余,并且证明了当X有有限个连通分支时,S(X)上存在一个极大真同余。Abstract: Several classes of congruences on S(X) which related to the universal equivalence on general topological spaces X are determined. And it is proved that if the topological space X happens to have finite compotents then there exists a largest proper congruence on S(X).