Program13:00-13:50
Osamu Shimabukuro (Sojo University)
Title: On structures of modular adjacency algebras of Johnson schemes
Abstract:
We consider algebras over a field of characteristic p which are generated by adjacency
algebras of Johnson schemes. If the algebra is semisimple, the structure is the same as
that of the well-known Bose-Mesner algebras. We determine the structure of the algebra
when it is not semisimple
14:05-14:55
Koji Tasaka (Kyushu University)
Title: The formulas of representing integers as sums of squares
15:25-16:15
Hiroaki Kido (Fukuoka University)
Title: On the extension of sizes of generalized Hadamard matrices
16:30-17:20
Masakazu Akiyama (Kyushu University)
Title: A Mathematical Model of Cleavage
744 Motooka, Nishi-ku
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IMI(Institute of Mathematics for Industry)
Seminar
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The 1st Combinatorics Seminar, 2012
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Hold Date | 2012-06-02 13:00～2012-06-02 18:00 |
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Place | NIshijin Plaza, Kyushu University |
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Speaker | Osamu Shimabukuro (Sojo University), Koji Tasaka (Kyushu University), Hiroaki Kido (Fukuoka University), Masakazu Akiyama (Kyushu University) |
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