Commun. Korean Math. Soc. 2006 Vol. 21, No. 3, 527-532 Printed September 1, 2006
Yan-Kui Song Nanjing Normal University
Abstract : In this paper, we construct an example of a normal centered-Lindel{\"o}f space $X$ such that $St\text{-}l(X)\geq\omega_1$ under $2^{\aleph_0}=2^{\aleph_1}$.