(14) Equivariant vector bundle over a GKM graph and its projectivization: kpa70+ Transformation group theory --The path we have walked along, and the way to progress-- On the celebration for the retirement and the 70th birthday of Professor Krzystof M. Pawalowski , Tokyo University of Science, February 18th 2021 in zoom. (invited)
(13) Gale dual of a GKM graph and its application to the extension problem of torus actions: International conference Topology and geometry of group actions, Higher School of Economy (Moscow in Russia), Novermber 20th 2020 in zoom. (invited) (slides)
(12) Gale dual of GKM graph: Workshop on Torus Actions in Topology, Fields Institute (Toronto in Canada), March 27th (postponed to May 15th by online), 2020. (invited) (slides)
(11) Equivariant cohomology of a certain class of torus orbifolds: 7th East Asian Conference on Algebraic Topology (EACAT7), The Indian Institute of Science Education and Research (IISER) (Mohali in India), December 1st, 2017. (invited) (slides)
(10) Extended actions of quasitoric manifolds and J-constructions of polytopes: The Princeton-Rider Workshop on the Homotopy Theory of Polyhedral Products, Princeton University and Rider University (Princeton in US), May 31st, 2017. (invited) (slides)
(15) Flag Bott manifolds of general Lie type and their equivariant cohomology rings: Topology, Geometry, and Dynamics: Rokhlin - 100, The Euler International Mathematical Institute (Saint Petersburg in Russia) August 23rd, 2019. (slides)
(14) Equivariant cohomology of torus orbifolds with vanishing odd degree cohomology: Glances at Manifolds 2018, the Jagiellonian University (Krakow in Poland) (selected to the contribution talk) July 3rd, 2018.
(13) A remark on root systems and J-constructions of quasitoric manifolds: Toric Topology 2016 in Kagoshima Kagoshima University (Kagoshima in Japan) April 21st, 2016.
(44) Equivariant vector bundles from a GKM theoretical point of view: RIMS meeting 2021, New developments of transformation groups, RIMS (Kyoto in Japan), May 25th 2021. (invited) (slides)
(43) Gale dual of the GKM graph and its applications to the extension of the torus action on a GKM manifold: The 46th Symposium on Transformation Groups, Osaka Prefecture University l-site Namba (Osaka in Japan), November 2nd 2019. (invited)
(42) Gale dual of a GKM graph and its basic property, Japanese-Russian Seminar on Toric Topology and Homotopy Theory, Steklov Mathematical Institute (Moscow in Russia), August 27th 2019.
(41) On equivariant cohomology rings of flag Bott towers: The theory of transformation groups and its applications, RIMS (Kyoto in Japan), May 30th 2019. (invited)
(40) Equivariant cohomology of torus orbifolds: The 45th Symposium on Transformation Groups, Kumamoto City International Center (Kumamoto in Japan), December 8th 2018. (invited)
(39) Flag Bott manifolds and the toric closure of generic orbit associated to a generalized Bott manifold: The 44th Symposium on Transformation Groups, Fukui Phoenix Plaza (Fukuin in Japan), November 16th 2017. (invited)
(38) GKM manifold and GKM graph (1), (2): Algebraic and Geometric Models for Spaces and Related Topics 2017, Shinshu University (Nagano in Japan), September 5th and 6th 2017. (invited, 2 talks in Japanese)
(37) On flagged Bott manifolds: Young Researchers in Homotopy Theory and Toric Topology, Kyoto University (Kyoto in Japan), August 5th 2017. (invited)
(36) Quasitoric manifolds, root systems and J-constructions of polytopes: Algebraic Topology focused on Transformation Groups, RIMS (Kyoto in Japan), May 24th 2017. (invited) (Japanese)
(35) A partial classification of complexity one GKM manifolds with large symmetries: Group actions and topology, Kinosaki health and welfare center (Hyogo in Japan), December 5th 2016. (invited) (Japanese)
(34) Cohomological non-rigidity of eight-dimensional complex projective towers: MSJ Autumn Meeting 2016, Kansai University (Osaka in Japan), September 17th 2016. (Japanese) (slides)
(33) Flagified Bott manifolds and their maximal torus actions: New transformation group theory and related topics, RIMS (Kyoto in Japan), May 24th 2016. (Japanese)
(--) (talk by Taiko Kurose) Computation of the centralizer groups of the involutions in the reflection group of type A: The 12th STM (Satyric Math.) Workshop in Okinawa, Ryukyu University (Okinawa in Japan), March 8th, 2020. (Japanese)
(45) On Hilbert 3rd problem: Workshop on Geometric Discrete Mathematical Science III, Mihara-shi Welfare center (Hiroshima in Japan), March 12th, 2019. (Japanese)
(--) (talk by Ryoto Yukitou) On properties of Gale dual of the axial function of complexity one GKM graph: MSJ Chugoku-Shikoku area meeting 2019, Kagawa University (Kagawa in Japan), January 27th, 2019. (Japanese)
(44) Complexity one GKM manifolds with extended actions: Toric Topology 2017 in Osaka (informal seminar), Osaka City University (Osaka, Japan), December 14th 2017.
(43) Equivariant cohomology of torus orbifolds: Algebraic Topology Seminar, Kyoto University (Kyoto, Japan), May 1st 2017. (invited) (Japanese)
(42) Classification of GKM graphs with combinatorial type $K_{4}$: STM09 Mini-workshop in Okayama, Okayama University of Science (Okayama, Japan), March 2nd 2017. (invited) (Japanese) (slides)