スペクトラルグラフ理論および周辺領域
第4回研究集会
2015年11月20日㈮〜22日㈰
筑波大学 総合研究棟B 1階110号室
本研究集会は、平成27年度科学研究費補助金
・基盤研究(C) 課題番号:25400217
研究代表者:谷口哲至
・基盤研究(C) 課題番号:25400034
研究代表者:田中太初
・若手研究(B) 課題番号:15K20885
研究代表者:佐野良夫
による支援を受けております。
Friday, November 20 | |
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14:00–14:05 | Opening address |
Tetsuji Taniguchi (Hiroshima Institute of Technology) | |
14:05–14:45 | Sho Kubota (Tohoku University) |
Switched symplectic graphs obtained from the orbit partitions | |
14:55–15:35 | Yuhei Inoue (Tohoku University) |
A new approach to the four color theorem and a number of $4$-colorings of biwheels | |
15:45–16:25 | Kiyoto Yoshino (Tohoku University) |
Embedding a weighted graph and contribution rate | |
16:35–18:00 | Free discussion |
Saturday, November 21 | |
10:00–10:40 | Takashi Komatsu (Tohoku University) |
Limiting distributions of discrete-time quantum walks on the square lattice | |
10:50–12:20 | [Special talk] Iwao Sato (National Institute of Technology, Oyama College) |
Zeta function of a graph and its applications | |
12:20–14:20 | Lunch |
14:20–15:00 | Kazuhiro Kawamura (University of Tsukuba) |
Laplacian eigenvalues of subdivision graphs of stars | |
15:10–15:50 | Gary Greaves (Tohoku University) |
On the clique number of strongly regular graphs | |
16:00–16:40 | Masanori Sawa (Kobe University) |
A bound for the inertia of Hermitian matrices and its applications to finite combinatorics | |
16:50–18:00 | Free discussion |
Sunday, November 22 | |
10:00–10:40 | Shohei Satake (Nagoya University) |
Asymmetry of oriented graph | |
10:50–11:30 | Yoichi Izunaga (University of Tsukuba) |
A doubly non-negative relaxation for modularity density maximization | |
11:40–12:20 | Hisashi Morioka (Shibaura Institute of Technology) |
Complex Fermi surfaces and spectrum of discrete Laplacian on perturbed lattices | |
12:20–12:25 | Closing address |
Yoshio Sano (University of Tsukuba) | |
12:30–14:00 | Free discussion |
谷口 哲至 (広島工業大学)
佐野 良夫 (筑波大学)
澤 正憲 (神戸大学)
瀬川 悦生 (東北大学)
田中 太初 (東北大学)
見村 万佐人 (東北大学)