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Index theorems in scattering theory: beyond a finite number of bound states

Research Project

Project/Area Number 18K03328
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 12010:Basic analysis-related
Research InstitutionNagoya University

Principal Investigator

Richard Serge  名古屋大学, 多元数理科学研究科(国際), G30特任教授 (70725241)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsScattering theory / Wave operators / Index theorems / Integrable models / Bibliometric analaysis / Epidemiology / Decay estimates / Reproduction number / Epidemic propagation / Integrable model / Bibliometric analysis / scattering theory / wave operators / index theorem
Outline of Final Research Achievements

We have developed analytical tools in the context of quantum scattering theory. These results are necessary for exhibiting properties of physical systems which are robust under perturbations. Because of the pandemic, we have also performed bibliometric research on mathematical papers, and developed new tools for computing the effective reproduction number of the COVID-19 epidemic.

Academic Significance and Societal Importance of the Research Achievements

Stability results of quantum systems are important, since these systems are constantly subject to perturbations. Bibliometric investigations provide a clear link between international collaborations and citations. New methods for computing the effective reproduction number can have a huge impact.

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (20 results)

All 2022 2021 2020 2019 2018

All Journal Article (10 results) (of which Int'l Joint Research: 10 results,  Peer Reviewed: 10 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 1 results,  Invited: 9 results) Funded Workshop (1 results)

  • [Journal Article] Spectral and scattering theory for topological crystals perturbed by infinitely many new edges2022

    • Author(s)
      S. Richard, N. Tsuzu
    • Journal Title

      Reviews in Mathematical Physics

      Volume: 33 Issue: 04

    • DOI

      10.1142/s0129055x22500106

    • NAID

      120007190679

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Decay estimates for unitary representations with applications to continuous- and discrete-time models2022

    • Author(s)
      S. Richard, R. Tiedra de Aldecoa
    • Journal Title

      Annales Henri Poincare

      Volume: in press

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Analysis of COVID-19 Spread in Tokyo through an Agent-Based Model with Data Assimilation2022

    • Author(s)
      C. Sun, S. Richard, T. Miyoshi, N. Tsuzu
    • Journal Title

      Journal of clinical medicine

      Volume: 11

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bibliometric analysis on mathematics, 3 snapshots: 2005, 2010, 20152021

    • Author(s)
      S. Richard, Q. Sun
    • Journal Title

      Electronic Journal of Applied Statistical Analysis

      Volume: in press

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Discrete Laplacian in a half-space with a periodic surface potential I: Resolvent expansions, scattering matrix, and wave operators2021

    • Author(s)
      S. H. Nguyen, S. Richard, R. Tiedra de Aldecoa
    • Journal Title

      Mathematische Nachrichten

      Volume: in press

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spectral and scattering theory of one-dimensional coupled photonic crystals2021

    • Author(s)
      G. De Nittis, M. Moscolari, S. Richard, R. Tiedra de Aldecoa
    • Journal Title

      Reviews in Mathematical Physics

      Volume: in press

    • NAID

      120007190680

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On radial Schroedinger operators with a Coulomb potential: General boundary conditions2020

    • Author(s)
      J. Derezinski, J. Faupin, Q.N. Nguyen, S. Richard
    • Journal Title

      ADVANCES IN OPERATOR THEORY

      Volume: 82

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On some integral operators appearing in scattering theory, and their resolutions2020

    • Author(s)
      S. Richard, T. Umeda
    • Journal Title

      book: Spectral Theory and Mathematical Physics, proceeding of a conference

      Volume: in press

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Index theorems for Fredholm, semi-Fredholm, and almost periodic operators: all in one example2019

    • Author(s)
      H. Inoue, S. Richard
    • Journal Title

      Journal of noncommutative geometry

      Volume: in press

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Topological Levinson's theorem for inverse square potentials: complex, infinite, but not exceptional2019

    • Author(s)
      H. Inoue, S. Richard
    • Journal Title

      Revue roumaine de mathematiques pures et appliquees

      Volume: LXIV

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Scattering theory and non-commutative geometry: A walk from the parentheses of Levinson to the hexagon of Cordes2021

    • Author(s)
      Serge Richard
    • Organizer
      Global Noncommutative Geometry Seminar
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Bibliometric analysis on mathematics 3 snapshots: 2005, 2010, 20152021

    • Author(s)
      S. Richard
    • Organizer
      Himeji Conference on Partial Differential Equations
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Discrete Laplacian in a half-space with a periodic surface potential: - Resolvent expansions, scattering matrix, and wave operators2019

    • Author(s)
      S. Richard
    • Organizer
      Spectral and Scattering Theory and Related Topics, Rims Kyoto
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Operator algebras: what are they good for ?2019

    • Author(s)
      S. Richard
    • Organizer
      Spring School in Analysis and Mathematical Physics, Pontificia Universidad Catolica de Chile, Santiago, Chile
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Levinson's theorem in scattering theory: classical, topological, complex, infinite !2019

    • Author(s)
      S. Richard
    • Organizer
      Workshop on Analysis, PDE, and Mathematical physics, Central China Normal University, Wuhan (China)
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Index theorems for Fredholm, semi-Fredholm and almost-periodic operators; all in one example2019

    • Author(s)
      S. Richard
    • Organizer
      Colloquium of mathematics, Universidad de Chile, Santiago (Chile)
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Index theorems for Fredholm, semi-Fredholm and almost-periodic operators; all in one example2018

    • Author(s)
      S. Richard
    • Organizer
      International Conference Spectral Theory and Mathematical Physics, Santiago (Chile)
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Le theoreme de Levinson topologique: 13 ans apres2018

    • Author(s)
      S. Richard
    • Organizer
      Seminar of geometry, algebra and operator algebras, Clermont-Ferrand University (F)
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Wave operators: Beyond existence, completeness, and boundedness2018

    • Author(s)
      S. Richard
    • Organizer
      Kagurazaka analysis seminar, Tokyo University of Science (JP)
    • Related Report
      2018 Research-status Report
    • Invited
  • [Funded Workshop] Himeji conference on partial differential equations2019

    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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