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2009 Fiscal Year Self-evaluation Report

Zeta function of a graph and its generalization

Research Project

  • PDF
Project/Area Number 19540154
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General mathematics (including Probability theory/Statistical mathematics)
Research InstitutionOyama National College of Technology

Principal Investigator

SATOU Iwao  Oyama National College of Technology, 一般科, 教授 (70154036)

Project Period (FY) 2008 – 2010
Keywords応用数学 / 離散数学
Research Abstract

(1)digraphの重み付きBartholdiゼータ関数や重み付きBartholdi L-関数を導入し、その行列式表示を与える。
(2)隣接行列を(1)とは異なるweighted matrixで置き換え、新たなゼータ関数、L関数を導入する。
(3)periodic simple graph, fractal graph等の無限グラフのゼータ関数を、無限グラフのBartholdiゼータ関数や無限digraphのBartholdiゼータ関数に拡張する。
(4)hypergraphのIharaゼータ関数を、Bartholdiゼータ関数に拡張し、新たなゼータ関数に一般化したい
(5)グラフの重み付きゼータ関数、重み付きL関数に関するセルバーグ型の跡公式を、正則グラフ、半正則2部グラフについて求め、極の偏角の分布について、考える。

  • Research Products

    (10 results)

All 2010 2009 2008 2007

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (5 results)

  • [Journal Article] Bartholdi zeta functions of fractal graphs2009

    • Author(s)
      I. Sato
    • Journal Title

      Electronic Journal of Combinatorics (electronic) 16

      Pages: 21

    • Peer Reviewed
  • [Journal Article] The scattering matrix of a graph2008

    • Author(s)
      H. Mizuno, I. Sato
    • Journal Title

      Electronic Journal of Combinatorics (electronic) 15

      Pages: 18

    • Peer Reviewed
  • [Journal Article] Bartholdi zeta and $L$-functions of weighted digraphs, their coverings and products2007

    • Author(s)
      Y-B, Choe, J. H. Kwak, Y. S. Park, I. Sato
    • Journal Title

      Advances in Mathematics 213

      Pages: 865-886

    • Peer Reviewed
  • [Journal Article] Bartholdi zeta functions for hypergraphs2007

    • Author(s)
      I. Sato
    • Journal Title

      Electronic Journal of Combinatorics (electronic) 14

      Pages: 9

    • Peer Reviewed
  • [Journal Article] A new Bartholdi zeta function of a digraph2007

    • Author(s)
      H. Mizuno, I. Sato
    • Journal Title

      Linear Algebra and Its Applications 423

      Pages: 498-511

    • Peer Reviewed
  • [Presentation] グラフのゼータ関数とその行列式表示2010

    • Author(s)
      佐藤巌
    • Organizer
      日本数学会応用数学分科会特別講演
    • Place of Presentation
      慶応大学
    • Year and Date
      2010-03-24
  • [Presentation] The Ihara zeta function of a graph and its generalization, "Zeta Function"2008

    • Author(s)
      H. Mizuno, I. Sato
    • Organizer
      2008 Moscow
    • Place of Presentation
      The Independence University of Moscow
    • Year and Date
      2008-12-03
  • [Presentation] Bartholdi zeta functions for hypergraphs2008

    • Author(s)
      I. Sato
    • Organizer
      20th Workshop on Topological Graph Theory
    • Place of Presentation
      Yokohama National University
    • Year and Date
      2008-11-26
  • [Presentation] A new Bartholdi zeta function of a digraph2007

    • Author(s)
      I. Sato
    • Organizer
      14th Conference of the International Linear Algebra Society 2007
    • Place of Presentation
      Shanghai University
    • Year and Date
      2007-07-15
  • [Presentation] Bartholdi zeta functions of branched coverings of digraphs2007

    • Author(s)
      H. Mizuno, I. Sato
    • Organizer
      Kyoto International Conference on Computational Geometry and Graph Theory 2007
    • Place of Presentation
      Kyoto University
    • Year and Date
      2007-06-12

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Published: 2011-06-18   Modified: 2016-04-21  

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