JP Journal of Geometry and Topology
Volume 6, Issue 3, Pages 289 - 296
(November 2006)
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SPACES WITH s-COMPACT-FINITE sn-NETWORKS
Jianhua Shen (P. R. China)
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has a s-compact-finite sn-network
if
for each sequential-isolated point x
in X. As an application of this
result, we prove that a k-space X
has a s-compact-finite sn-network
iff X has a point-countable, s-weakly hereditarily closure-preserving sn-network,
which answers a question posed by L. Yan.