Kocinac, Ljubisa D.R.(Universitat Politècnica de València, 2003-10-01)
[EN] In this paper we investigate some closure properties of the space Ck(X) of continuous real-valued functions on a Tychonoff space X endowed with the compact-open topology.
Benítez López, Julio; Cvetkovic-Ilic, D.; Liu, X.(Duke University Press, 2014)
[EN] Let {a_n} be a sequence of group invertible elements of a unital C* algebra A that converges to a. We present some equivalent conditions for the group invertibility of a and for the convergence of {a^#_n} to a#.