2026
Borsuk-Ulam theorem, 7th Italian-Japanese Summer School in Mathematics, Pisa, Italy, September.
Uniform Lefschetz fixed-point theorem, Unstable Homotopy Forum 2026, Beijing, China, August.
Topological complexity sequences of groups, AATRN Topological Complexity Seminar, online.
Torsion in the space of commuting elements in a Lie groups, Mini Workshop on Algebraic and Geometric Topology, Kyoto, January.
2025
Uniform Lefschetz fixed-point theorem, Fukuoka University Mini Workshop, Fukuoka, November.
Space of commuting elements in a Lie group, Homotopy Theory Symposium 2025, Matsumoto, October.
Tverberg's theorem for cell complexes, Combinatorial Algebraic Topology & Applications III, Pisa, Italy, September.
Tverberg's theorem for cell complexes, South African-Japanese Discrete Homotopy Meeting 2025, Cape Town, South Africa, September.
Morse inequalities for noncompact manifolds, Joint Japan/US Collaborative Workshop on Geometric Analysis II, Kyoto, September.
Morse inequalities for noncompact manifolds, 72th Geometry Symposium, Tsukuba, August.
Morse inequalities for noncompact manifolds, Unstable Homotopy Forum 2025, Beijing, China, August.
Uniform Lefschetz fixed point theorem, Focus Program on Algebraic Topology in memory of Fred Cohen, Toronto, Canada, July.
Morse inequalities for noncompact manifolds, Fukuoka University Topology Seminar, Fukuoka, June.
Vector fields on noncompact manifolds, The 9th East Asian Conference on Algebraic Topology, Hebei, China, May.
The fundamental group and the magnitude-path spectral sequence of a directed graph, One Day Workshop with Rachael Boyd on Algebraic Topology, Kyoto, January.
Morse inequalities for noncompact manifolds, Saga Souhatsu Mathematical Seminar, Saga, January.
2024
Morse inequalities for noncompact manifolds, Kansai Algebraic Topology Seminar, Special Workshop on the ocasion of Atsushi Yamaguchi's 65th birthday, Tokyo, November.
Golod and tight manifold triangulations, Workshop on Polyhedral Products, Toronto, Canada, July.
Vector fields on noncompact manifolds, Advances in Homotopy Theory VI, online, June.
Vector fields on noncompact manifolds, Topology, Representation Theory and Higher Structures, Isle of Skye, UK, June.
Van Kampen-Flores theorem for cell complexes, Kansai Algebraic Topology Seminar (Kyushu University), Fukuoka, March.
Tight complexes are Golod, Shinshu Topology Seminar - Kansai Algebraic Topology Seminar (Shinshu University), Matsumoto, January.
Tight complexes are Golod, Fukuoka Homotopy Theory Seminar, Fukuoka, January.
2023
Vector fields on non-compact manifolds, Transformation Group Theory Symposium, Nagasaki, December.
The space of commuting elements in a Lie group and maps between classifying spaces, Algebraic Topology for Manifolds and Mapping Spaces, Okayama, November.
Vector fields on non-compact manifolds, Homotopy Theory Symposium 2023, Osaka, November.
Torsion in the space of commuting elements in a Lie group, Iberoamerican and Pan Pacific International Conference on Topology and its Applications, Puebla, Mexico, September.
Tverberg's theorem for cell complexes, Colloquium (Kyoto University), Kyoto, June.
Vector fields on non-compact manifolds, Topology Seminar (Kyushu University) - Kansai Algebraic Topology Seminar, Fukuoka, May.
2022
Golod and tight 3-manifolds, Advances in Homotopy Theory III, online, November.
Golod and tight 3-manifolds, Homotopy Theory Symposium 2022, online, November.
Golod and tight 3-manifolds, International Polyhedral Products Seminar (Princeton University), online, October.
Tverberg's theorem for cell complexes, Math and Biology Seminar (BIMSA), online, September.
Golod and tight 3-manifolds, Topology Seminar (University of Aberdeen), Aberdeen, UK, September.
Tverberg's theorem for cell complexes, New Trends in Transformation Group Theory, Kyoto, May.
Golod and tight 3-manifolds, Topology Seminar (Kyushu University), Fukuoka, May.
Upper bounds for virtual dimensions of Seiberg-Witten moduli spaces, Kansai Gauge Theory Seminar (Kyoto University), online, February.
2021
Space of commuting elements in a Lie group, Homotopy Theory Symposium 2021, online, November.
Torsion in the space of commuting elements in a Lie groups, Spaces of Homomorphisms and Classifying Spaces, online, September.
Tverberg's theorem for cell complexes, Topological Complexity Seminar (Applied Algebraic Topology Research Network), online, August.
Tverberg's theorem for cell complexes, 37th Algebraic Combinatorics Symposium, online, June.
Tverberg's theorem for cell complexes, Kyoto-Kyushu-Shinshu Joint Topology Seminar, online, May.
Cohomology of the space of commuting elements in the classical groups, International Polyhedral Products Seminar at Princeton, online, April.
Tverberg's theorem for cell complexes, Toric Topology 2021 in Osaka, online, March.
2020
Relative phantom maps and rational homotopy, EACAT 8, online, December.
Relative phantom maps and rational homotopy, Southampton-Kyoto Workshop II, online, December.
Generating function and topological complexity, Kyoto-Kyushu-Shinshu Joint Topology Seminar, online, June.
Golodness and polyhedral products for surface triangulations, Toric Topology Postdoc Seminar (Fields Institute for Research in Mathematical Sciences), Toronto, Canada, February.
When is a polyhedral product a finite Postnikov section?, Workshop on Polyhedral Products in Homotopy Theory, Toronto, Canada, January.
When is a polyhedral product a finite Postnikov section?, Fukuoka Homotopy Theory Seminar, Fukuoka, January.
2019
Higher Whitehead products in moment-angle complexes, Toric Topology 2019 in Okayama, Okayama, November.
Higher homotopy associativity in the Harris decomposition of Lie groups, 3rd PPICTA, Chengdu, China, November.
Higher homotopy associativity in the Harris decomposition of Lie groups, Southampton-Kyoto Workshop, Southampton, UK, September.
Homotopy commutativity in localized gauge groups, Homotopy Okinawa, Okinawa, September.
Mod p decomposition of Lie groups revisited, The Theory of Transformation Groups and its Applications, Kyoto, March.
Whitehead Products in moment-angle complexes, Fukuoka Homotopy Theory Seminar, Fukuoka, January.
2018
The Stanley-Reisner functor for a poset, Discrete Geometric Structure Seminar (Hokkaido University), Sapporo, November.
Right-angled Coxeter quandles and polyhedral products, Homotopy Theory Symposium 2018, Tokyo, November.
The Borsuk-Ulam theorem, Hebei Normal University, Hebei, July.
Mod p homology of the classifying space of a gauge group, Topology Seminar (Chinese Academy of Sciences), Beijing, China, July.
Relative phantom maps, Algebraic Topology, Combinatorics, and Mathematical Physics (on the occasion of Victor Buchstaber's 75th birthday), Steklov Mathematical Institite, Moscow, Russia, May.
On the homotopy types of Sp(n) gauge groups, Algebraic Topology Seminar (Kyoto University), Kyoto, April.
Higher homotopy commutativity in localized Lie groups, Topology Seminar (University of Southampton), Southampton, UK, March.
Homotopy theory of polyhedral products, MSJ Spring Meeting (Special Lecture), Tokyo, March.
Right-angled Coxeter quandles and polyhedral products, Aberdeen Topology Seminar (University of Aberdeen), Aberdeen, UK, February.
Right-angled Coxeter quandles and polyhedral products, Fukuoka Homotopy Theory Seminar, Fukuoka, January.
2017
Mod p homology of the classifying space of a gauge group, Shinshu Topology Seminar (Shinshu University), Nagano, December.
Golodness of 2-dimensional simplicial complexes and polyhedral products, Topology Friday Seminar (Kyushu University), Fukuoka, December.
Mod p homology of the classifying space of a gauge group, Homotopy Theory Symposium 2017, Kagawa, November.
Counting gauge groups, 2nd PPICTA, Busan, South Korea, November.
Mod p homology of the classifying space of a gauge group, Kansai Gauge Theory Seminar (Kyoto University), Kyoto, July.
Right-angled Coxeter quandles and polyhedral products, Homotopy Theory of Polyhedral Products, New Jersey, US, May.
Right-angled Coxeter quandles and polyhedral products, Algebraic Topology Focused on Transformation Groups (Kyoto University), Kyoto, May.
Infiniteness of A∞-types of gauge groups, Topology Seminar (University of Southampton), Southampton, UK, March.
Infiniteness of A∞-types of gauge groups, Workshop on Homotopy Theory and Singularity Theory, Sapporo, February.
2016
Primer on Adams operations, Kansai Gauge Theory Seminar (Kyoto University), Kyoto, December.
Homotopy theory of polyhedral products, 63rd Topology Symposium, Kobe, July.
Homotopy decomposition of diagonal arrangements, Toric Topology Workshop, Osaka, April.
Samelson products in p-regular SO(2n), Algebraic Topology Seminar (Tokyo Institute of Technology), Tokyo, March.
Homotopy decomposition of diagonal arrangements, Topology Seminar (University of Southampton), Southampton, UK, February.
Samelson products in p-regular SO(2n), Fukuoka Homotopy Theory Seminar, Fukuoka, January.
2015
Decomposition of diagonal arrangements, EACAT6, Daejeon, December.
Golodness and moment-angle complexes for 2-dimensional simplicial complexes, Algebraic Topology from Combinatorial Viewpoint, Ehime, October.
Fat-wedge filtrations and moment-angle complexes, Toric Topology 2015 in Osaka, Osaka, June.
Fat-wedge filtrations and polyhedral products, Geometry Colloquium (Hokkaido University), Sapporo, June.
Infiniteness of A∞-types of gauge groups, Finiteness and Infiniteness in Homotopy Theory, Fukuoka, February.
Homotopy decomposition of diagonal arrangements, Workshop and Seminar on Topological Combinatorics and Related Topics, Kasetsart University, Bangkok, Thailand, January.
Tiling and Groups, Workshop and Seminar on Topological Combinatorics and Related Topics, Kasetsart University, Bangkok, Thailand, January.
2014
Homotopy decomposition of diagonal arrangements, Topology Friday Seminar (Kyushu University), Fukuoka, December.
Topology and combinatorics of polyhedral products, ICM 2014 Satellite Conference on Algebraic Topology, Dalian, China, August.
Homotopy decomposition of diagonal arrangements, Topology and Algebraic Structures of Transformation Groups, Kyoto, May.
Topology of polyhedral products and te Golod property of Stanley-Reisner rings, Topology Seminar (University of Southampton), Southampton, UK, May.
Homotopy decomposition of diagonal arrangements, Topology Seminar (University of Electro-Communications), Tokyo, March.
Decomposing real moment-angle complexes, Toric Topology 2014 in Osaka, Osaka, January.
2013
Gysin "sequence" of a covering, Diffeology in Karatsu, Saga, December.
Decomposing real moment-angle complexes, Topology Seminar (Kochi University), Kochi, December.
Decomposing real moment-angle complexes, EACAT5, Beijing, December.
Topology of polyhedral products and the Golod property of the Stanley-Reisner rings, Homotopy Theory Symposium 2013, Okayama, November.
Topology of polyhedral products and the Golod property of the Stanley-Reisner rings, Barcelona Topology Workshop 2013 (J. Aguadé's 60th birthday), Barcelona, Spain, September.
Homotopy commutativity in localized Lie groups, International Conference on Topology and Geometry 2013, Shimane, September.
Hom complexes and hypergraph colorings, Applied Topology in Bedlewo, Poznan, Poland, July.
Wedge decomposition of polyhedral products, Mathematics Colloquium, Kyoto University, Kyoto, May.
Homotopy commutativity in localized Lie groups, Topology of Transformation Groups and Related Topics, Kyoto, May.
On the p-local homotopy types of gauge groups, Fukuoka Homotopy Theory Seminar, Fukuoka, January.