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Uniform density and m-density for subrings of C(X) Garrido Carballo, María Isabel Montalvo, Francisco This paper deals with the equivalence between u-density and m-density for the subrings of C(X). It was proved by Kurzweil that such equivalence holds for those subrings that are closed under bounded inversion. Here an example is given in C(N) of a u-dense subring that is not m-dense. It is deduced that the two types of density coincide only in the trivial case where these topologies are the same, that is, if and only if X is a pseudocompact space. 2023-06-20T16:53:12Z 2023-06-20T16:53:12Z 2023-06-20T16:53:12Z 1994 journal article https://hdl.handle.net/20.500.14352/57331 0004-9727 10.1017/S0004972700016531 eng Garrido MI, Montalvo F. Uniform density and M−density for subrings of C(X). Bulletin of the Australian Mathematical Society. 1994;49(3):427-432. doi:10.1017/S0004972700016531 restricted access Cambridge University Press