# Article

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Keywords:
H-closed; cardinal functions; measurable cardinals
Summary:
The cardinal functions of pseudocharacter, closed pseudocharacter, and character are used to examine H-closed spaces and to contrast the differences between H-closed and minimal Hausdorff spaces. An H-closed space $X$ is produced with the properties that $|X|>2^{2^{\psi (X)}}$ and $\overline{\psi}(X)>2^{\psi(X)}$.
References:
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[PW] Porter J.R., Woods R.G.: Extensions and Absolutes of Hausdorff Spaces. Springer-Verlag, Berlin, 1988. MR 0918341 | Zbl 0652.54016

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