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• 1 Nanjing Normal University Institute of Mathematics, School of Mathematical Science Nanjing 210023 P.R. China
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A space X is almost star countable (weakly star countable) if for each open cover U of X there exists a countable subset F of X such that \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{upgreek} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage{bbm} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} $\bigcup {_{x \in F}\overline {St\left( {x,U} \right)} } = X$ \end{document} (respectively, \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{upgreek} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage{bbm} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} $\overline {\bigcup {_{x \in F}} St\left( {x,U} \right)} = X$ \end{document}. In this paper, we investigate the relationships among star countable spaces, almost star countable spaces and weakly star countable spaces, and also study topological properties of almost star countable spaces.

• Aiken, L. P., Star-covering properties: generalized Ψ-spaces, countability conditions, reflection, Topology Appl., 158 (2011), 1732–1737.

Aiken L. P. , 'Star-covering properties: generalized Ψ-spaces, countability conditions, reflection ' (2011 ) 158 Topology Appl. : 1732 -1737.

• Alas, O. T., Junqueira, L. R. and Wilson, R. G., Countability and star covering properties, Topology Appl., 158 (2011), 620–626.

Wilson R. G. , 'Countability and star covering properties ' (2011 ) 158 Topology Appl. : 620 -626.

• Alas, O. T., Junqueira, L. R., van Mill, J., Tkachuk, V. V. and Wilson, R. G., On the extent of star countable spaces, Cent. Eur. J. Math., 9(3) (2011), 603–615.

Wilson R. G. , 'On the extent of star countable spaces ' (2011 ) 9 Cent. Eur. J. Math. : 603 -615.

• van Douwn, E. K., Reed, G. M., Roscoe, A. W. and Tree, I. J., Star covering properties, Topology Appl., 39 (1991), 71–103.

Tree I. J. , 'Star covering properties ' (1991 ) 39 Topology Appl. : 71 -103.

• Engelking, R., General Topology, Revised and completed edition, Heldermann Verlag, Berlin (1989).

Engelking R. , '', in General Topology, Revised and completed edition , (1989 ) -.

• Matveev, M. V., A survey on star-covering properties, Topology Atlas, preprint No 330, (1998).

Matveev M. V. , '', in A survey on star-covering properties , (1998 ) -.

• van Mill, J., Tkachuk, V. V. and Wilson, R. G., Classes defined by stars and neighborhood assignments, Topology Appl., 154 (2007), 2127–2134.

Wilson R. G. , 'Classes defined by stars and neighborhood assignments ' (2007 ) 154 Topology Appl. : 2127 -2134.

• Song, Y.-K., Remarks on countability and star covering properties, Topology Appl., 158 (2011), 1121–1123.

Song Y.-K. , 'Remarks on countability and star covering properties ' (2011 ) 158 Topology Appl. : 1121 -1123.

• Tall, F. D., Normality verse Collectionwise Normality, in: Handbook of Settheoretic Topology, (K. Kunen and J. E. Vaughan, eds.), North-Holland, Amsterdam (1984), 685–732.

Tall F. D. , '', in Handbook of Settheoretic Topology , (1984 ) -.

• Walker, R. C., The Stone-Čech Compactification, Springer, Berlin (1974).

Walker R. C. , '', in The Stone-Čech Compactification , (1974 ) -.

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Studia Scientiarum Mathematicarum Hungarica
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