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Interaction between randomness and geometric structures in simplicial complexes

Research Project

Project/Area Number 19K21833
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 12:Analysis, applied mathematics, and related fields
Research InstitutionKyoto University

Principal Investigator

Hino Masanori  京都大学, 理学研究科, 教授 (40303888)

Co-Investigator(Kenkyū-buntansha) 平岡 裕章  京都大学, 高等研究院, 教授 (10432709)
Project Period (FY) 2019-06-28 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords単体複体 / 確率論 / 幾何構造 / パーシステントホモロジー / ランダムグラフ / ランダムネス
Outline of Research at the Start

本研究では,離散的な対象である単体複体(族)の位相幾何構造と確率論との関わりを研究する.特に,ランダムな単体複体およびその族に対して,その幾何学的構造を明らかにする新たな手法を開発することにより,確率論と幾何学を繋ぐ新理論の創始を目指す.単体複体における確率過程と幾何構造とを関連付け,位相幾何学研究の確率解析的アプローチによる展開を図る.

Outline of Final Research Achievements

This study mainly focuses on the geometric structure of a family of simplicial complexes and its relation to probability theory. To this end, the relationship between Betti numbers of simplicial complexes and eigenvalues of the corresponding graph Laplacian was discussed. Furthermore, we proved limit theorems, such as the law of large numbers and the large deviation principle, in relation to the persistent homology for a family of random simplicial complexes. These studies can be regarded as higher-dimensional analogues of the study of random graphs.

Academic Significance and Societal Importance of the Research Achievements

ランダムグラフの研究が長い歴史を持つことに比較して,その高次元版と見なされるランダム単体複体の研究はまだ発展途上といえる.対象の高次元化を行うことで,空間の幾何構造とランダムネスとの結びつきがより顕になることが期待され,数学理論としての理論展開に興味が持たれるものである.本研究課題においては,そのような問題意識に基づいた研究を行った.

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (19 results)

All 2023 2022 2021 2020 2019

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 6 results,  Invited: 5 results) Funded Workshop (2 results)

  • [Journal Article] Estimates of the local spectral dimension of the Sierpinski gasket2023

    • Author(s)
      Masanori Hino
    • Journal Title

      Applied and Numerical Harmonic Analysis

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Girth, magnitude homology, and phase transition of diagonality2023

    • Author(s)
      Yasuhiko Asao, Yasuaki Hiraoka, Shu Kanazawa
    • Journal Title

      Proceedings of the Royal Society of Edinburgh Section A

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Singularity of energy measures on a class of inhomogeneous Sierpinski gaskets2022

    • Author(s)
      Masanori Hino and Madoka Yasui
    • Journal Title

      Dirichlet Forms and Related Topics in honor of Professor Fukushima's Beiju

      Volume: -

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Asymptotics of Integrals of Betti Numbers for Random Simplicial Complex Processes2021

    • Author(s)
      Hino Masanori
    • Journal Title

      Fractal Geometry and Stochastics VI

      Volume: PRPR 76 Pages: 125-140

    • DOI

      10.1007/978-3-030-59649-1_6

    • ISBN
      9783030596484, 9783030596491
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Percolation on Homology Generators in Codimension One2020

    • Author(s)
      Hiraoka Yasuaki、Mikami Tatsuya
    • Journal Title

      Topological Data Analysis and Beyond. Workshop at NeurIPS 2020

      Volume: 15 Pages: 307-342

    • DOI

      10.1007/978-3-030-43408-3_12

    • ISBN
      9783030434076, 9783030434083
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Zeta functions of periodic cubical lattices and cyclotomic-like polynomials2020

    • Author(s)
      Y. Hiraoka, H. Ochiai, T. Shirai
    • Journal Title

      Advanced Studies in Pure Mathematics

      Volume: 84 Pages: 93-121

    • DOI

      10.2969/aspm/08410093

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Percolation on Homology Generators in Codimension One2020

    • Author(s)
      Y. Hiraoka and T. Mikami
    • Journal Title

      Abel Symposia, Topological Data Analysis

      Volume: -

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Estimates of the local spectral dimension of the Sierpinski gasket2022

    • Author(s)
      Masanori Hino
    • Organizer
      確率解析とその周辺
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Is the persistence diagram really a stable data descriptor?2022

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Computational Persistence 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Girth, magnitude homology, and phase transition of diagonality2022

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Conference on Applied, Combinatorial and Toric Topology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Singularity of energy measures on a class of inhomogeneous Sierpinski gaskets2021

    • Author(s)
      日野正訓
    • Organizer
      日本数学会2021年度秋季総合分科会
    • Related Report
      2021 Research-status Report
  • [Presentation] On characterizing rare events in persistent homology2021

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Online workshop "Beyond TDA -- Persistent topology and its applications in data sciences"
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On characterizing rare events in persistent homology2021

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Thematic Einstein Semester on Geometric and Topological Structure of Materials
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Characterizing rare events in persistent homology2021

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Joint Mathematics Meetings, AMS Special Session on Applied Topology
    • Related Report
      2020 Research-status Report
  • [Presentation] Characterizing rare events in persistent homology2020

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Topological Data Analysis and Beyond. Workshop at NeurIPS 2020
    • Related Report
      2020 Research-status Report
  • [Presentation] Limit theorems of persistent homology2020

    • Author(s)
      Yasuaki Hiraoka
    • Organizer
      Joint Mathematics Meetings, AMS Special Session on Applied Topology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 拡散過程が定める次元2019

    • Author(s)
      日野正訓
    • Organizer
      語ろう「数理解析」
    • Related Report
      2019 Research-status Report
    • Invited
  • [Funded Workshop] Japanese-German Open Conference on Stochastic Analysis 20192019

    • Related Report
      2019 Research-status Report
  • [Funded Workshop] Stochastic Analysis, Random Fields and Integrable Probability2019

    • Related Report
      2019 Research-status Report

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Published: 2019-07-04   Modified: 2024-01-30  

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