English

Real compactness via real maximal ideals of $B_1(X)$

General Topology 2023-07-18 v2

Abstract

In this paper, constructing a class of ideals of B1(X)B_1(X) from proper ideals of C(X)C(X) a one-one correspondence between the class of real maximal ideals of C(X)C(X) and those of B1(X)B_1(X) is established. The collection of all real maximal ideals of B1(X)B_1(X) with hull-kernel topology is proved to be homeomorphic to the space of real maximal ideals of C(X)C(X) endowed with a topology finer than the subspace topology induced from its structure space. It is also proved that a Tychonoff space is real compact if and only if every real maximal ideal of B1(X)B_1(X) is fixed. As a consequence, within the class of real compact T4T_4 spaces whose points are GδG_\delta, B1(X)=B1(X)B_1(X) = {B_1}^*(X) if and only if XX is finite.

Keywords

Cite

@article{arxiv.2103.10980,
  title  = {Real compactness via real maximal ideals of $B_1(X)$},
  author = {A. Deb Ray and Atanu Mondal},
  journal= {arXiv preprint arXiv:2103.10980},
  year   = {2023}
}

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7 pages