Non-product property of the digital fundamental group. - Sang-Eon Han (Inf. Sci., 2005)

Discrete Homotopy of a Closed k-Surface. - Sang-Eon Han (IWCIA, 2006)

Minimal simple closed 18-surfaces and a topological preservation of 3D surfaces. - Sang-Eon Han (Inf. Sci., 2006)

Erratum to "Non-product property of the digital fundamental group" [Informat. Sci. 171(1-3) (2005) 73-91]. - Sang-Eon Han (Inf. Sci., 2006)

Connected sum of digital closed surfaces. - Sang-Eon Han (Inf. Sci., 2006)

Digital fundamental group and Euler characteristic of a connected sum of digital closed surfaces. - Sang-Eon Han (Inf. Sci., 2007)

The k-fundamental group of a closed k-surface. - Sang-Eon Han (Inf. Sci., 2007)

Equivalent (k0, k1)-covering and generalized digital lifting. - Sang-Eon Han (Inf. Sci., 2008)

Comparison among digital fundamental groups and its applications. - Sang-Eon Han (Inf. Sci., 2008)

The k-Homotopic Thinning and a Torus-Like Digital Image in Zn. - Sang-Eon Han (J. Math. Imaging Vis., 2008)

Ultra regular covering space and its automorphism group. - Sang-Eon Han (Int. J. Appl. Math. Comput. Sci., 2010)

Extension of continuity of maps between axiomatic locally finite spaces. - Sang-Eon Han (Int. J. Comput. Math., 2011)

M-valued Measure of Roughness for Approximation of L-fuzzy Sets and Its Topological Interpretation. - Sang-Eon Han; Alexander P. Sostak (IJCCI (Selected Papers), 2014)

Variable-Range Approximate Systems Induced by Many-Valued L-Relations. - Aleksandrs Elkins; Sang-Eon Han; Alexander P. Sostak (IPMU (3), 2014)

On approximate-type systems generated by L-relations. - Sang-Eon Han; In-Soo Kim; Alexander P. Sostak (Inf. Sci., 2014)

A Stone-type duality for sT0 stratified Alexandrov L-topological spaces. - Wei Yao 004; Sang-Eon Han (Fuzzy Sets Syst., 2016)

Lattice-theoretic contexts and their concept lattices via Galois ideals. - Wei Yao 004; Sang-Eon Han; Rongxin Wang (Inf. Sci., 2016)

An MA-digitization of Hausdorff spaces by using a connectedness graph of the Marcus-Wyse topology. - Sang-Eon Han; Wei Yao 004 (Discret. Appl. Math., 2017)

Homotopic properties of an MA-digitization of 2D Euclidean spaces. - Sang-Eon Han (J. Comput. Syst. Sci., 2018)

On the measure of M-rough approximation of L-fuzzy sets. - Sang-Eon Han; Alexander P. Sostak (Soft Comput., 2018)

Estimation of the complexity of a digital image from the viewpoint of fixed point theory. - Sang-Eon Han (Appl. Math. Comput., 2019)

Roughness measures of locally finite covering rough sets. - Sang-Eon Han (Int. J. Approx. Reason., 2019)

Marcus-Wyse topological rough sets and their applications. - Sang-Eon Han (Int. J. Approx. Reason., 2019)

Covering rough set structures for a locally finite covering approximation space. - Sang-Eon Han (Inf. Sci., 2019)

Topological operators of MW-topological rough approximations. - Sang-Eon Han (Int. J. Approx. Reason., 2020)

Topological properties of locally finite covering rough sets and K-topological rough set structures. - Sang-Eon Han (Soft Comput., 2021)

A topological approach to rough sets from a granular computing perspective. - Wei Yao 004; Sang-Eon Han (Inf. Sci., 2023)

DT-k-group structures on digital objects and an answer to an open problem. - Sang-Eon Han (Discret. Math. Algorithms Appl., 2024)