{ "id": "1803.06271", "version": "v1", "published": "2018-03-16T15:33:14.000Z", "updated": "2018-03-16T15:33:14.000Z", "title": "Maximal ideals in rings of real measurable functions", "authors": [ "Ali Akbar Estaji", "Ahmad Mahmoudi Darghadam", "Hasan Yousefpour" ], "categories": [ "math.GN", "math.FA" ], "abstract": "Let $ M (X)$ be the ring of all real measurable functions on a measurable space $(X, \\mathscr{A})$. In this article, we show that every ideal of $M(X)$ is a $Z^{\\circ}$-ideal. Also, we give several characterizations of maximal ideals of $M(X)$, mostly in terms of certain lattice-theoretic properties of $\\mathscr{A}$. The notion of $T$-measurable space is introduced. Next, we show that for every measurable space $(X,\\mathscr{A})$ there exists a $T$-measurable space $(Y,\\mathscr{A}^{\\prime})$ such that $M(X)\\cong M(Y)$ as rings. The notion of compact measurable space is introduced. Next, we prove that if $(X, \\mathscr{A})$ and $(Y, \\mathfrak{M^{\\prime}})$ are two compact $T$-measurable spaces, then $X\\cong Y$ as measurable spaces if and only if $M(X)\\cong M (Y)$ as rings.", "revisions": [ { "version": "v1", "updated": "2018-03-16T15:33:14.000Z" } ], "analyses": { "subjects": [ "28A20", "13A30", "54C30", "06D22" ], "keywords": [ "real measurable functions", "maximal ideals", "lattice-theoretic properties", "compact measurable space", "characterizations" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }