We continue to study one of the classic problems in general topology raised by P. S. Alexandrov: when a Hausdorff space X has a continuous bijection (a condensation) onto a compactum? We concentrate on the situation when not only X but also \(X\setminus Y\) can be condensed onto a compactum whenever the cardinality of Y does not exceed certain \(\tau\).

中文翻译：

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Hausdorff空间的紧凑凝聚

我们将继续研究PS Alexandrov提出的一般拓扑中的经典问题之一：当Hausdorff空间X在紧致物体上具有连续的双射（凝聚）时？我们专注于这种情况时，不仅X而且\（X \ setminus Y \）可以浓缩到每当致密的基数Ÿ不超过一定\（\ tau蛋白\） 。