Baker, C. W.; Caldas, M.; Jafari, S. Strongly \(S\)-closed spaces and firmly contra-continuous functions. (English) Zbl 1182.54020 Missouri J. Math. Sci. 21, No. 3, 175-182 (2009). Summary: In the present paper, we offer a new form of firm continuity, called firm contra-continuity, by which we characterize strongly S-closed spaces. Moreover, we investigate the basic properties of firmly contra-continuous functions. We also introduce and investigate the notion of locally contra-closed graphs. Cited in 1 Document MSC: 54C10 Special maps on topological spaces (open, closed, perfect, etc.) 54D10 Lower separation axioms (\(T_0\)–\(T_3\), etc.) Keywords:firm continuity; locally contra-closed graphs × Cite Format Result Cite Review PDF