Math 2.0

General topology Compactness Concept

Metacompact space

Summary

A metacompact space is a topological space in which every open cover has a point-finite open refinement. Point-finite means that each point lies in only finitely many members of the refinement. This is weaker than paracompactness, where each point needs a neighbourhood meeting only finitely many members. So every paracompact space, and in particular every compact space, is metacompact.

Further reading

  1. Web https://en.wikipedia.org/wiki/Metacompact_space
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Changed2 November 2026

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