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A Strengthened topological cardinal inequality

Published online by Cambridge University Press:  17 April 2009

Sun Shu-Hao  and
Wang Yan-Ming
Sun Shu-Hao
Affiliation:
Department of Basic Teaching, Shanghai Institute of Mechanical Engineering, Shanghai, PRC.
Wang Yan-Ming
Affiliation:
Department of Mathematics, Shanghai Normal University, Shanghai, PRC.
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Abstract

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A new cardinal inequality, |K (X)| ≤ 2L∗(X) · psw (X), is proved in this paper. It strengthens the result of D.K. burke and R. Hodel the |K (X)| ≤ 2e (X) · psw (X).

Type
Research Article
Information
Bulletin of the Australian Mathematical Society , Volume 32 , Issue 3 , December 1985 , pp. 375 - 378
Copyright
Copyright © Australian Mathematical Society 1985

References

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