Isolated point
From Encyclopedia of Mathematics
of a subspace $A$ of a topological space $X$
A point $a\in A$ such that the intersection of some neighbourhood of it with $A$ consists of the point $a$ alone.
How to Cite This Entry:
Isolated point. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Isolated_point&oldid=13250
Isolated point. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Isolated_point&oldid=13250
This article was adapted from an original article by A.A. Mal'tsev (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article