Last updated: 2024/05/23
Ryo Uchiumi (内海 凌 / うちうみ りょう)
Affiliation: Osaka University, Department of Mathematics, Graduate School of Science, Japan
Research Interests
Finite reflection groups, Root systems
Graphs
Group actions, Combinatorial representations
Hyperplane arrangements
Educational Background
Bachelor (Education): Hokkaido Univ. of Education, Asahikawa, Department of Mathematics Education. (2018/04/01 ~ 2022/03/15)
Bachelor's Thesis (survey, informal): 有限鏡映群と図形の対称性.
Master (Science): Hokkaido Univ. Department of Mathematics, Graduate School of Science. (2022/04/01 ~ 2024/03/25)
Master's Thesis: The product of transpositions associated with labeled edges of the graph.
Doctor (Science): Osaka Univ. Department of Mathematics, Graduate School of Science. (2024/04/01 ~ )
If you would like to read my theses, please contact me below.
Publications and Preprints
(Published) R. Uchiumi, Signed graphs and signed cycles of hyperoctahedral groups. Electronic Journal of Graph Theory and Applications (EJGTA) . (arXiv: 2211.05475)
(Accepted) S. Tsujie and R. Uchiumi, Upper Embeddability of Graphs and Products of Transpositions Associated with Edges. Accepted at Ars Mathematica Contemporanea. (arXiv: 2211.05422)
Talks
辻栄周平,内海 凌,グラフ埋め込みと辺に付随する互換の積,日本数学会 2023 年度年会 (中央大学), 2023/03/15.
内海 凌,符号つきグラフの辺に付随する超八面体群の互換の積,Order Seminar (大阪大学),2023/06/02.
内海 凌,グラフの彩色多項式と超平面配置の特性多項式,組合せ論的ホッジ理論勉強会 (第0回) (大阪大学),2023/09/26.
内海 凌,グラフのラベル付き辺に付随した互換の積,第2回旭川離散数学セミナー (北海道教育大学旭川校),2024/02/29.
内海 凌,グラフのラベル付き辺に付随した互換の積,第20回数学総合若手研究集会 (北海道大学),2024/03/05.
内海 凌,グラフ理論と超平面配置からみる組合せ論,What is ... ? セミナー(第4回) (大阪大学) ,2024/05/23.
Contact and Links
Mail : ryo.uchiumi.math <atmark> gmail.com
ORCiD : 0000-0002-4956-7177
Scopus Author ID : 57988765700
arXiv : Here