(Japanese)

RIMS "Research on algebraic combinatorics, related groups and algebras"

December 10 (Monday) -- December 13(Thursday), 2018
RIMS, Kyoto University
Organizer:Manabu Oura

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Monday, December 10
10:00-10:30 Shoma Sugimoto (Kyoto Univ.)
Realizations of ADE type logarithmic principal W-algebras
10:40-11:10 Hiroshi Yamauchi (Tokyo Woman's Christian Univ.)
VOAs with group-like fusion and quadratic forms
11:20-12:10 Ching Hung Lam (Academia Sinica)
Automorphism groups of some holomorphic VOAs of central charge 24
14:00-14:50 Fumihito Oda (Kindai Univ.)
The abstract Burnside rings
15:00-15:30 Tsuyoshi Miezaki (Univ. of the Ryukyus), Manabu Oura (Kanazawa Univ.), Tadashi Sakuma (Yamagata Univ.), Hidehiro Shinohara
The Tutte polynomials of genus $g$
15:50-16:20 Yusuke Kobayashi (Chiba Univ.)
A construction of the Rudvalis graph from the Fano plane
16:30-17:00 Takuya Ikuta (Kobe Gakuin Univ.)
Complex Hadamard matrices coming from association schemes
Tuesday, December 11
10:00-10:30 Nur Hamid (Nurul Jadid University, Kanazawa Univ.), Masasi Kosuda (Yamanashi Univ.), Manabu Oura (Kanazawa Univ.)
Symmteric Group and Classical Invariant Theory
10:40-11:30 Kenji Akiyama, Chihiro Suetake
Generalized Hadamard matrices with a hole and projective planes of prime order
11:40-12:10 Yoshihiro Otokita (Chiba Univ.)
Defect groups, inertial quotients and fixed point algebras
14:00-14:50 Tomoyoshi Ibukiyama (Prof.Emeritus at Osaka Univ.)
Automorphic differential operators and special polynomials
15:05-15:55 Eiichi Bannai (Prof.Emeritus at Kyushu Univ.)
Unitary $t$-groups
16:10-17:00 Michio Ozeki (Prof.Emeritus at Yamagata Univ.)
On the problem of the lattice covering radius by spheres
Wednesday, December 12
10:00-10:50 Koji Chinen (Kindai Univ.)
Construction of extremal invariant polynomials not satisfying the Riemann hypothesis
11:00-11:50 Iwao Sato (National Institute of Technology, Oyama College)
Ihara zeta function and quantum walk
14:00-15:00 Hiroshi Nozaki (Aichi Univ. of Education)
Maximal 2-distance sets containing the regular simplex
15:15-16:05 Hiroaki Taniguchi (National Institute of Technology, Kagawa College)
Distance regular graphs arising from dimensional dual hyperovals
16:20-17:00 Yuki Irie (Tohoku Univ.)
Take-away games with the same Sprague-Grundy function as Nim
Thursday, December 13
10:00-10:50 Akihiko Hida (Saitama Univ.), Masao Kiyota (Prof.Emeritus at Tokyo Medical and Dental Univ.)
Character degree products and class length products of some finite groups
11:00-11:50 Satoshi Yoshiara (Tokyo Woman's Christian Univ.)
The Cayley graphs determined by functions on finite fields

In case of multiple names, a speaker is indicated by an underline.
The organizer is indebted for the strong support to Professors Naoki Chigira, Masaaki Harada, Masaaki Kitazume, Masahiko Miyamoto, Akihiro Munemasa and Yugen Takegahara. This conference is supported by JSPS KAKENHI Grant Numbers 17K05164, 18K18708.