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.
"Strongly S-Closed Spaces and Firmly Contra-Continuous Functions." Missouri J. Math. Sci. 21 (3) 175 - 182, October 2009. https://doi.org/10.35834/mjms/1316024883