Ideal spaces

Abstract

<p>Let C<sub>∞ </sub>(X) denote the family of real-valued continuous functions which vanish at infinity in the sense that {x ∈ X : |f(x)| ≥ 1/n} is compact in X for all n ∈ N. It is not in general true that C<span style="vertical-align: sub;">∞ </span>(X) is an ideal of C(X). We define those spaces X to be ideal space where C<span style="vertical-align: sub;">∞ </span>(X) is an ideal of C(X). We have proved that nearly pseudocompact spaces are ideal spaces. For the converse, we introduced a property called “RCC” property and showed that an ideal space X is nearly pseudocompact if and only if X satisfies ”RCC” property. We further discussed some topological properties of ideal spaces.</p>