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On the volume conjecture for knots and potential functions

Research Project

Project/Area Number 15K04878
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Geometry
Research InstitutionTokyo Metropolitan University

Principal Investigator

Yokota Yoshiyuki  首都大学東京, 理工学研究科, 教授 (40240197)

Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords体積予想 / ポテンシャル関数 / 交代結び目 / ヘッセ行列式 / キューブ分解 / 結び目 / ノイマン・ザギエ級数 / A多項式
Outline of Final Research Achievements

The volume conjecture for knots states that, for a knot in 3-sphere, the volume of its complement appears in the limit of its colored Jones polynomial. This is very important conjecture because the geometric background of quantum invariants, such as Jones polynomials, is still unclear. To prove this conjecture, we have to study the geometric and analytic properties of the potential function which appears in the integral expression of the colored Jones polynomial. In fact, it is already known that the stationary phase equations and the critical value of the potential function give the structure equations and the volume.
In this reaserch, we study the geodesics in the complements of the alternating knots, the existence of the solution to the structure equations, and a numerical method to compute the A-polynomial by using the derivatives of the potential function.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (7 results)

All 2018 2017 2016

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results)

  • [Journal Article] An application of non-positively curved cubings of alternating links2018

    • Author(s)
      Sakuma Makoto、Yokota Yoshiyuki
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 146 Issue: 7 Pages: 3167-3178

    • DOI

      10.1090/proc/13918

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the asymptotic expansions of the Kashaev invariant of the knots with 6 crossings2017

    • Author(s)
      OHTSUKI TOMOTADA、YOKOTA YOSHIYUKI
    • Journal Title

      Mathematical Proceedings of the Cambridge Philosophical Society

      Volume: - Issue: 2 Pages: 1-53

    • DOI

      10.1017/s0305004117000494

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the cusp shape of hyperbolic knots2016

    • Author(s)
      Yoshiyuki Yokota
    • Journal Title

      Journal of Knot Theory and Its Ramifications

      Volume: 25 Issue: 05 Pages: 1650025-1650025

    • DOI

      10.1142/s0218216516500255

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] On the cusp shape of hyperbolic knots and its generalizations2016

    • Author(s)
      横田佳之
    • Organizer
      Growth3
    • Place of Presentation
      早稲田大学(新宿区)
    • Year and Date
      2016-03-31
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] カシャエフ不変量と量子双対数関数2016

    • Author(s)
      横田佳之
    • Organizer
      ENCOUNTER with MATHEMATICS
    • Place of Presentation
      中央大学(文京区)
    • Year and Date
      2016-03-02
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] カシャエフ不変量に潜む幾何構造2016

    • Author(s)
      横田佳之
    • Organizer
      ENCOUNTER with MATHEMATICS
    • Place of Presentation
      中央大学(文京区)
    • Year and Date
      2016-03-02
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] On a non-positively curved cubing of the exterior of an alternating knot2016

    • Author(s)
      Yoshiyuki Yokota
    • Organizer
      Workshop on Volume Conjecture and Quantum Topology
    • Place of Presentation
      Waseda University
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2015-04-16   Modified: 2019-03-29  

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