Extension of functions defined on products of pseudocompact spaces and continuity of the inverse in pseudocompact groupsстатья
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Аннотация:It is proved that a Tychonoff pseudocompact group with continuous multiplication is a topological group. It is also proved that a Tychonoff countably compact group with separately continuous multiplication is a topological group. A continuous function defined on a product X × Y of pseudocompact spaces is extended to a separately continuous function defined on the product β(X) × β(Y) of their Stone-Čhech compactifications.