ISHII Atsushi

Affiliation
Institute of Pure and Applied Sciences
Official title
Associate Professor
URL
Research fields
Geometry
Research keywords
low-dimensional topology
Research projects
Geometry of handlebody-knots2021-04 -- 2026-03ISHII AtsushiJapan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (C)3,900,000Yen
Handlebody-knots and augmented Alexander invariants2018-04 -- 2022-03ISHII AtsushiJapan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (C)4,290,000Yen
Orientations and invariants of handlebody-knots2015-04 -- 2018-03ISHII AtsushiJapan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (C)4,680,000Yen
Handlebody-knots and invariants2012-04 -- 2015-03ISHII AtsushiJapan Society for the Promotion of Science/Grant-in-Aid for Young Scientists (B)4,420,000Yen
Handlebody-knots and topology2009 -- 2012-03ISHII AtsushiJapan Society for the Promotion of Science/Grant-in-Aid for Young Scientists (B)4,030,000Yen
Career history
2005-04 -- 2007-03JSPSOsaka UniversityResearch Fellow
2007-04 -- 2008-08JSPSRIMS, Kyoto UniversityResearch Fellow
2008-09 -- 2013-04(University of Tsukuba)大学院数理物質科学研究科Assistant Professor
2013-05 -- 2019-11(University of Tsukuba)数理物質系(数学域)講師
2019-12 -- (current)(University of Tsukuba)数理物質系(数学域)准教授
Degree
2006-03博士(理学)Osaka University
Academic societies
2003-04 -- (current)The Mathematical Society of Japan
-- (current)The Mathematical Society of Japan
-- (current)The Mathematical Society of Japan
Articles
Conference, etc.
  • Partially multiplicative biquandles and handlebody-knots
    Ishii Atsushi; Nelson Sam
    AMS Fall Western Sectional Meeting/2015-10-24--2015-10-25
Teaching
2024-04 -- 2024-08Research in Geometry IBUniversity of Tsukuba.
2024-10 -- 2025-02Research in Geometry IIAUniversity of Tsukuba.
2024-10 -- 2025-02Research in Geometry IAUniversity of Tsukuba.
2024-04 -- 2024-08Research in Geometry IIIBUniversity of Tsukuba.
2024-04 -- 2024-08Seminar on MathematicsUniversity of Tsukuba.
2024-10 -- 2025-02Seminar on MathematicsUniversity of Tsukuba.
2024-04 -- 2024-08Geometry IUniversity of Tsukuba.
2024-04 -- 2024-08Research in Geometry IIIAUniversity of Tsukuba.
2024-10 -- 2025-02Research in Geometry VAUniversity of Tsukuba.
2024-04 -- 2024-08Research in Geometry VBUniversity of Tsukuba.
more...
Talks
  • On bracket polynomials for Alexander-type invariants
    石井 敦
    金沢トポロジーセミナー/2025-06-12--2025-06-12
  • Determinant state sum formulas for Alexander-type invariants
    石井 敦
    日本数学会年会/2025-03-18--2025-03-21
  • A bracket polynomial for the Alexander--Conway polynomial
    石井 敦
    結び目の数理VII/2024-12-24--2024-12-27
  • The Alexander polynomial and the Jones polynomial
    石井 敦
    数理科学セミナー/2024-10-03--2024-10-03
  • On a bracket polynomial for the Alexander--Conway polynomial
    石井 敦
    Knots and Related Topics/2024-09-11--2024-09-12
  • Quandle twisted Alexander invariants with cohomologous Alexander pairs
    石井 敦
    数理情報科学セミナー/2023-09-28--2023-09-28
  • Alexander type invariants of groups, quandles and MCQs
    石井 敦
    日本数学会年会/2023-03-15--2023-03-18
  • On normalization of Alexander type invariants
    石井 敦
    拡大KOOKセミナー2022/2022-08-30--2022-09-01

(Last updated: 2025-07-29)