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Hakata Workshop; Summer Meeting 2017 の履歴(No.2)


Hakata Workshop 2018

~Discrete Mathematics and its Applications~

 

Our purpose of this meeting is giving an opportunity to make a speech and to communicate with researchers who study various fields not only Combinatorics.

Further information is available from the organizers below.

Organizers

  • Yoshihiro Mizoguchi (Kyushu University),
  • Hayato Waki (Kyushu University),
  • Takafumi Shibuta (Kyushu University),
  • Tetsuji Taniguchi (Hiroshima Institute of Technology),
  • Makoto Tagami ( Kyushu Institute of Technology),
  • Hirotake Kurihara (Kitakyushu National College of Technology),
  • Shuya Chiba (Kumamoto University).

Supported by

Date

Saturday, June 17, 2017

Location

Program

TBA

Abstract

Michio Seto (NDA) (this is joint work with S. Suda)

  • Title: An application of de Branges-Rovnyak space theory to graph theory
  • Abstract: Let be inclusion of two finite simple graphs. In this talk, we deal with inner product spaces encoding the data of the defect of G_1 in G_2. Our construction of those inner product spaces is based on de Branges-Rovnyak space theory in functional analysis. Further, applying the theory of quasi-orthogonal decomposition developed by de Branges and Vasyunin-Nikolskii, some inequalities concerning inclusion are derived.