Lee, Sik; Han, Sang-Eon Semi-separation axioms associated with the Alexandroff compactification of the \(MW\)-topological plane. (English) Zbl 07804357 Electron. Res. Arch. 31, No. 8, 4592-4610 (2023). MSC: 54H30 54Axx 54Dxx 54Cxx PDFBibTeX XMLCite \textit{S. Lee} and \textit{S.-E. Han}, Electron. Res. Arch. 31, No. 8, 4592--4610 (2023; Zbl 07804357) Full Text: DOI
Kang, Jeong Min; Han, Sang-Eon; Lee, Sik Digital products with \(PN_k\)-adjacencies and the almost fixed point property in \(DTC_k^\blacktriangle\). (English) Zbl 1525.68187 AIMS Math. 6, No. 10, 11550-11567 (2021). MSC: 68U03 54H25 54H30 68U10 PDFBibTeX XMLCite \textit{J. M. Kang} et al., AIMS Math. 6, No. 10, 11550--11567 (2021; Zbl 1525.68187) Full Text: DOI
Han, Sang-Eon; Lee, Sik Some properties of lattice-based \(K\)- and \(M\)-maps. (English) Zbl 1358.54010 Honam Math. J. 38, No. 3, 625-642 (2016). MSC: 54A10 54C05 55R15 54C08 54F65 68U05 68U10 PDFBibTeX XMLCite \textit{S.-E. Han} and \textit{S. Lee}, Honam Math. J. 38, No. 3, 625--642 (2016; Zbl 1358.54010) Full Text: DOI
Han, Sang-Eon; Lee, Sik Remarks on homotopies associated with Khalimsky topology. (English) Zbl 1337.55002 Honam Math. J. 37, No. 4, 577-593 (2015). MSC: 55-02 55Q70 52Cxx 55P15 68R10 68U05 PDFBibTeX XMLCite \textit{S.-E. Han} and \textit{S. Lee}, Honam Math. J. 37, No. 4, 577--593 (2015; Zbl 1337.55002) Full Text: DOI
Han, Sang-Eon; Lee, Sik Utility of digital covering theory. (English) Zbl 1351.55001 Honam Math. J. 36, No. 3, 695-706 (2014). MSC: 55-02 55Q70 52C99 55P15 68R10 68U05 PDFBibTeX XMLCite \textit{S.-E. Han} and \textit{S. Lee}, Honam Math. J. 36, No. 3, 695--706 (2014; Zbl 1351.55001) Full Text: DOI
Han, Sang-Eon; Lee, Sik Remarks on digital products with normal adjacency relations. (English) Zbl 1300.55019 Honam Math. J. 35, No. 3, 515-524 (2013). MSC: 55Q70 52C17 55P15 68R10 68U05 PDFBibTeX XMLCite \textit{S.-E. Han} and \textit{S. Lee}, Honam Math. J. 35, No. 3, 515--524 (2013; Zbl 1300.55019) Full Text: DOI
Han, Sang-Eon; Lee, Sik Weak \(k\)-deformation retract and its applications. (English) Zbl 1234.52011 Far East J. Math. Sci. (FJMS) 30, No. 1, 157-174 (2008). MSC: 52C07 55Q99 55P99 PDFBibTeX XMLCite \textit{S.-E. Han} and \textit{S. Lee}, Far East J. Math. Sci. (FJMS) 30, No. 1, 157--174 (2008; Zbl 1234.52011) Full Text: Link
Lee, Sik; Kim, Sam-Tae; Han, Sang-Eon Digital topological property of the digital 8-pseudotori. (English) Zbl 1333.57006 Honam Math. J. 26, No. 4, 411-421 (2004). MSC: 57M10 55Q70 PDFBibTeX XMLCite \textit{S. Lee} et al., Honam Math. J. 26, No. 4, 411--421 (2004; Zbl 1333.57006) Full Text: Link