講演

国際会議

Blanchfield pairings and Gordian distance, Geometry and Topology Seminar, the University of Glasgow, United Kingdom, March 2025.
Blanchfield pairings and Gordian distance, Knot theory, LMO invariants and related topics, Okinawa Institute of Science and Technology Graduate University, Japan, March 2024.
Thurston norm, twisted Euler characteristics and virtual fibering, The 19th Kagoshima Algebra-Analysis-Geometry Seminar, Kagoshima University, Japan, February 2024.
Torsion polynomial functions and essential surfaces, Séminaire GT3, Université de Strasbourg, France, October 2022.
Twisted Alexander polynomials and L²-Euler characteristics, Global Analysis Seminar, University of Regensburg, Germany, December 2019.
Character varieties and essential surfaces, Low-Dimensional Topology Workshop 2019, University of Regensburg, Germany, October 2019.
Character varieties and essential surfaces, The 14th East Asian Conference on Geometric Topology, Peking University, China, January 2019.
Twisted Alexander polynomials and L²-Euler characteristics, New development of low-dimensional topology, Shikinoyu Gora Seiunsou, Japan, December 2018.
Torsion polynomial functions and essential surfaces, Low Dimensional Topology and Number Theory X, AiRIMaQ Innovation Plaza, Japan, March 2018.
Representation varieties and essential surfaces, New Development in Teichmüller Space Theory, Okinawa Institute of Science and Technology Graduate University, Japan, November 2017.
Representation varieties detect splittings of 3-manifolds, Invariants in Low-dimensional Topology, Korea Institute for Advanced Study, South Korea, May 2017.
Representation varieties detect splittings of 3-manifolds, The second Australia-Japan Geometry, Analysis and their Applications, Kyoto University, Japan, January 2017.
Representation varieties detect splittings of 3-manifolds, Rigidity School, Nagoya 2016, Nagoya University, Japan, July 2016.
Representation varieties detect essential surfaces, Branched Coverings, Degenerations, and Related Topics 2016, Hiroshima University, Japan, March 2016.
Representation varieties detect essential surfaces, Geometry of Moduli Space of Low Dimensional Manifolds, Kyoto University, Japan, December 2015.
Representation varieties detect essential surfaces I, II, Topology and Geometry of Low-dimensional Manifolds, Nara Women's University, Japan, October 2015.
Representation varieties detect essential surfaces, Braids, Configuration Spaces and Quantum Topology, the University of Tokyo, Japan, September 2015.
Cluster algebras and torsion functions on moduli spaces, Infinite Analysis 14, the University of Tokyo, Japan, March 2014.
Character varieties of higher dimensional representations and splittings of 3-manifolds, Global Analysis Seminar, University of Regensburg, Germany, November 2013.
Twisted Alexander polynomials and incompressible surfaces given by Culler-Shalen theory, Quantum Topology and Hyperbolic Geometry Conference, Yasaka Saigon Nhatrang Resort Hotel, Vietnam, May 2013.
On an analogue of Culler-Shalen theory for higher dimensional representations, Low Dimensional Topology and Number Theory V, Fukuoka Soft Research Park, Japan, March 2013.
On an analogue of Culler-Shalen theory for higher dimensional representations, Aspects of representation theory in low-dimensional topology and 3-dimensional invariants, hôtel club Vacanciel, France, November 2012.
Non-commutative Reidemeister torsion, higher-order Alexander polynomials and circle valued Morse theory, Circle valued Morse theory and Alexander invariants, the University of Tokyo, Japan, November 2011.
On the leading coefficient of the metabelian Alexander polynomial, Knots and Links: From Form to Function, Scuola Normale Superiore di Pisa, Italy, July 2011.
Non-commutative Reidemeister torsion for homology cylinders, Topology Seminar, University of Nantes, France, June 2011.
Non-commutative Reidemeister torsion for homology cylinders, Geometric and Analytic Approaches to Representations of a Group and Representation Spaces, Kyoto University, Japan, June 2011.
Non-commutative Reidemeister torsion for homology cylinders, Low Dimensional Topology and Number Theory III, Kyushu University, Japan, March 2011.
Non-commutative Reidemeister torsion and Morse-Novikov theory, Low Dimensional Topology, University of Cologne, Germany, November 2010.
On the leading coefficients of higher-order Alexander polynomials, Twisted Topological Invariants and Topology of Low-Dimensional Manifolds, Akita Shirakami Taiken Center, Japan, September 2010.
Non-commutative Reidemeister torsion and Morse-Novikov theory, Knots, Contact Geometry and Floer homology, Tambara Workshop, the University of Tokyo, Japan, May 2010.
Non-commutative Reidemeister torsion and Morse-Novikov theory, Low Dimensional Topology and Number Theory II, the University of Tokyo, Japan, March 2010.
On metabelian Reidemeister torsion, The Sixth East Asian School of Knots and Related Topics, Nankai University, China, January 2010.
Non-commutative Reidemeister torsion and Morse-Novikov theory, Intelligence of Low Dimensional Topology 2009, Osaka City University, Japan, November 2009.
Torsion volume forms and twisted Alexander functions on character varieties of knots, Low Dimensional Topology and Number Theory, Kyushu University, Japan, March 2009.
Reidemeister torsion for linear representations and Seifert surgery on knots, The Fifth East Asian School of Knots and Related Topics, Gyeongju TEMF Hotel, South Korea, January 2009.
Isometries on SU(2)-representation spaces of knot groups and twisted Alexander functions (a poster presentation), The Forth East Asian School of Knots and Related Topics, the University of Tokyo, Japan, January 2008.
Refinement of twisted Alexander invariants and sign-determined Reidemeister torsion, The Third East Asian School of Knots and Related Topic, Osaka City University, Japan, February 2007.

国内学会等

Ribbon concordance and twisted Alexander polynomials, トポロジーとコンピュータ 2021, オンライン, 2021年9月.
リボンコンコーダンスとねじれAlexander多項式, N-KOOKセミナー, オンライン, 2021年5月.
Representations of fundamaetal groups and 3-manifold topology, 理化学研究所数理創造プログラム数学セミナー, オンライン, 2020年11月.
線形表現のなす空間と3次元多様体内の曲面について, 空間の代数的・幾何的モデルとその周辺, 信州大学, 2018年9月.
トーション多項式関数と3次元多様体の分解について, 数学講演会, 東京電機大学, 2018年7月.
線形表現の変形と3次元多様体の分解, 大岡山談話会, 東京工業大学, 2017年7月.
線形表現のモジュライ空間と3次元多様体の分解について, 談話会, 東京大学, 2016年5月.
Torsion invariants and representation varieties for non-positively curved cube complexes, トポロジー火曜セミナー, 東京大学, 2016年4月.
Representation varieties detect essential surfaces, トポロジー火曜セミナー, 東京大学, 2015年7月.
線形表現のモジュライ空間とトーション関数から見る3次元多様体の分解について, 大岡山談話会, 東京工業大学, 2014年6月.
Cluster algebras and torsion functions on moduli spaces, 東工大トポロジーセミナー, 東京工業大学, 2014年1月.
On an analogue of Culler-Shalen theory for higher dimensional representations, 代数多様体のトポロジーとその周辺, 北海道大学, 2013年8月.
On an analogue of Culler-Shalen theory for higher dimensional representations, 幾何セミナー, 東北大学, 2013年6月.
On an analogue of Culler-Shalen theory for higher dimensional representations, トポロジー火曜セミナー, 東京大学, 2013年6月.
Torsion functions on character varieties and an extension of Culler-Shalen theory, 日本数学会2013年度年会トポロジー分科会特別講演, 京都大学, 2013年3月.
The virtual fibering theorem and sutured manifold hierarchies, トポロジーセミナー, 岐阜大学, 2013年2月.
The virtual fibering theorem and sutured manifold hierarchies, トポロジー火曜セミナー, 東京大学, 2012年11月.
Twisted Alexander polynomialas of handlebody-knots, ハンドル体結び目とその周辺Ｖ, 大阪工業大学, 2012年10月.
On an analogue of Culler-Shalen theory for higher dimensional representations, トポロジーセミナー, 筑波大学, 2012年10月.
On an analogue of Culler-Shalen theory for higher dimensional representations, トポロジーセミナー, 東京工業大学, 2012年6月.
Applications of non-commutative Reidemeister torsion, GCOE Tea Time, 京都大学, 2012年1月.
Homology cylinders of higher-order, リーマン面に関連する位相幾何学2011, 東京大学, 2011年9月.
Non-commutative Reidemeister torsion and Morse-Novikov theory, 新KOOKセミナー, 大阪市立大学, 2011年5月.
Reidemeister torsion and homology cylinders, Spring Workshop 2011 on Low-Dimensional Topology and its Ramifications, 名城大学, 2011年3月.
Homology cylinders of higher-order, トポロジーセミナー, 東京農工大学, 2011年1月.
Non-commutative Reidemeister torsion and Morse-Novikov theory, 微分トポロジーセミナー, 京都大学, 2010年7月.
Non-commutative Reidemeister torsion and Morse-Novikov theory, トポロジー火曜セミナー, 東京大学, 2010年6月.
非可換Reidemeister torsionとMorse-Novikov理論, 日本数学会2010年度年会, 慶應義塾大学, 2010年3月.
ねじれAlexander多項式の基礎と応用, 関西低次元トポロジー若手セミナー, 奈良女子大学, 2010年2月.
On metabelian Reidemeister torsion, トポロジーセミナー, 東京農工大学, 2009年12月.
Non-commutative Reidemeister torsion and Morse-Novikov theory, トポロジーセミナー, 東京農工大学, 2009年7月.
Torsion volume forms and twisted Alexander functions on character varieties of knots, トポロジーセミナー, 東京工業大学, 2009年7月.
Torsion volume forms and twisted Alexander functions on character varieties of knots, トポロジー火曜セミナー, 東京大学, 2009年6月.
Reidemeister torsion for linear representations and Dehn surgery on knots, 計算機とトポロジー分野を中心とした勉強会, 東京大学, 2009年4月.
Reidemeister torsion for linear representations and Seifert surgery on knots, トポロジーセミナー, 東京農工大学, 2008年12月.
Reidemeister torsion for linear representations and Seifert surgery on knots, トポロジーセミナー, 東京工業大学, 2008年11月.
結び目群のSU(2)-表現空間の対称性と正規化されたねじれAlexander不変量, 第5回城崎新人セミナー, 城崎健康福祉センター, 2008年2月.
Twisted Alexander invariant and its applications, Winter Workshop 2008 on Low-Dimensional Topology and its Ramifications, 大阪市立大学, 2008年2月.
Symmetry of twisted Alexander invariants on SU(2)-representation spaces, トポロジーセミナー, 東京農工大学, 2007年11月.
Refinement of twisted Alexander invariants and sign-determined Reidemeister torsions, トポロジーセミナー, 東京農工大学, 2007年1月.

一般講演

トポロジーへの誘い――空間のかたちをやわらかく考える――, 高校生と大学生のための金曜特別講座, 東京大学, 2022年5月.
トポロジーへの誘い～ひもの結びから3次元のかたちへ～, 東京大学オープンキャンパス2017, 東京大学, 2017年8月.
トポロジー：空間のかたちをやわらかく考える, 高校生のための冬休み講座2016, 東京大学, 2016年12月.

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