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* Hakata Workshop 2018 [#qf036d98]
''～Discrete Mathematics and its Applications～''
#br
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 [#tc30b689]
-[[Yoshihiro Mizoguchi:http://imi.kyushu-u.ac.jp/~ym/]] (Kyushu University),~
-Hayato Waki (Kyushu University),~
-Takafumi Shibuta (Kyushu University),~
-[[Tetsuji Taniguchi:http://researchmap.jp/tetsuzit-14/]] (Hiroshima Institute of Technology),~
-Makoto Tagami ( Kyushu Institute of Technology),
-Hirotake Kurihara (Kitakyushu National College of Technology),~
-Shuya Chiba (Kumamoto University).
**Supported by [#l7bc435b]
-[[Graduate School of Mathematics, Kyushu University:http://www.math.kyushu-u.ac.jp/eng/]]
-JSPS KAKENHI(Grant-in-Aid for Scientific Research (C)) Grant Number 25400217.
**Date [#b8740a97]
Saturday, June 17, 2017
**Location [#z2fc6f30]
-Seminar Room I (2F) in Reference Eki Higashi Building.
1-16-14 Hakata-Eki-Higashi, Hakata-Ku, Fukuoka City, 812-0013
(see http://www.re-rental.com/ , [[Google maps:http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=%E7%A6%8F%E5%B2%A1%E5%B8%82%E5%8D%9A%E5%A4%9A%E5%8C%BA%E5%8D%9A%E5%A4%9A%E9%A7%85%E6%9D%B11%E4%B8%81%E7%9B%AE16-14&aq=&sll=33.590188,130.425417&sspn=0.012888,0.021157&ie=UTF8&hq=&hnear=%E6%97%A5%E6%9C%AC,+%E7%A6%8F%E5%B2%A1%E7%9C%8C%E7%A6%8F%E5%B2%A1%E5%B8%82%E5%8D%9A%E5%A4%9A%E5%8C%BA%E5%8D%9A%E5%A4%9A%E9%A7%85%E6%9D%B1%EF%BC%91%E4%B8%81%E7%9B%AE%EF%BC%91%EF%BC%96%E2%88%92%EF%BC%91%EF%BC%94&ll=33.591064,130.424795&spn=0.012887,0.021157&z=16]] )
**Program [#v08ce07a]
TBA
**Abstract [#l4635529]
*** Michio Seto (NDA) (this is joint work with S. Suda) [#h23c2e41]
-Title: An application of de Branges-Rovnyak space theory to graph theory
-Abstract:
Let &mimetex("G_1 \subset G_2"); 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
the defect of &mimetex(G_1); in &mimetex(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 &mimetex(G_1 \subset G_2); are derived.
