Two-way competitively orientable graphs
Line graphs and (∞,2) competition graphs
Extension results of on digraphs in which every t vertices have exactly λ common out-neighbors.
Myungho Choi and Suh-Ryung Kim: Multipartite tournaments in which any two vertices have an (i,j)-step common out-neighbor, https://doi.org/10.48550/arXiv.2410.04379
Myungho Choi, Hojin Chu, and Suh-Ryung Kim: Digraphs in which every t vertices have exactly λ common out-neighbors, https://doi.org/10.48550/arXiv.2405.02662
Myungho Choi and Suh-Ryung Kim: On (1,2)-step competition graph of multipartite tournaments, https://doi.org/10.48550/arXiv.2401.17817
Myungho Choi, Hojin Chu, and Suh-Ryung Kim: Competition-common enemy graphs of degree-bounded digraphs, https://doi.org/10.48550/arXiv.2405.13363
[6] Myungho Choi, Minki Kwak, Suh-Ryung Kim: The triangle-free graphs that are competition graphs of multipartite tournaments, To appear in Discussiones Mathematicae Graph Theory, https://doi.org/10.7151/dmgt.2525
[5] Myungho Choi, Hojin Chu, Suh-Ryung Kim: A digraph version of the Friendship Theorem, 348(1):114238, 2025, https://doi.org/10.1016/j.disc.2024.114238
[4] Myungho Choi and Suh-Ryung Kim: Extensions of results on phylogeny graphs of degree bounded digraphs, 335:30-45, 2024, https://doi.org/10.1016/j.dam.2024.04.023
[3] Myungho Choi and Suh-Ryung Kim: Digraphs whose -step competition graphs are trees, Discrete Discrete Applied Mathematics, 338(30):234-246, 2023, https://doi.org/10.1016/j.dam.2023.06.008
[2] Soogang Eoh, Myungho Choi, Suh-Ryung Kim: The niche graphs of multipartite tournament, Discussiones Mathematicae Graph Theory 43(4):1123-1146, 2023, https://doi.org/10.7151/dmgt.2424
[1] Myungho Choi, Minki Kwak, Suh-Ryung Kim: Competitively orientable complete multipartite graphs, Discrete Mathematics, 345(9):112950, 2022, https://doi.org/10.1016/j.disc.2022.112950