Title of article :
Cut points in some connected topological spaces
Author/Authors :
Kamboj، نويسنده , , Devender Kumar and Kumar، نويسنده , , Vinod، نويسنده ,
Issue Information :
دوماهنامه با شماره پیاپی سال 2010
Pages :
6
From page :
629
To page :
634
Abstract :
We prove that a connected topological space with endpoints has exactly two non-cut points and every cut point is a strong cut point; it follows that such a space is a COTS and the only two non-cut points turn out to be endpoints (in each of the two orders) of the COTS. A non-indiscrete connected topological space with exactly two non-cut points and having only finitely many closed points is proved homeomorphic to a finite subspace of the Khalimsky line. Further, it is shown, without assuming any separation axiom, that in a connected and locally connected topological space X, for a, b in X, S [ a , b ] is compact whenever it is closed. Using this result we show that an H ( i ) connected and locally connected topological space with exactly two non-cut points is a compact COTS with end points.
Keywords :
H ( i ) connected space , Strong cut point , COTS , cut point , Locally connected space , Connected space with endpoints , Closed points
Journal title :
Topology and its Applications
Serial Year :
2010
Journal title :
Topology and its Applications
Record number :
1582410
Link To Document :
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