International Conferences

• • "Stabilized convex symplectic manifolds are Weinstein"

HAYAMA Symposium on Complex Analysis in Several Variables XXII, Online, July 2021.

• • "Liouville manifolds of Weinstein type"

RIMS & IBS-CGP joint workshop, RIMS, Kyoto University, Japan, December 2019.

• • "On Lagrangian embeddings of closed non-orientable $3$-manifolds"

NCTS Symplectic Expedition: Following Yasha, Hsin Kwang Elementary School, Taiwan, May 2019.

• • "A construction of Lagrangian submanifolds via Lagrangian caps"

Topology of pseudoconvex domains and analysis of reproducing kernels, RIMS, Kyoto University, Japan, November 2017.

• • "On Lagrangian submanifolds in the complex projective spaces"

East Asian Symplectic Conference 2015, The Chinese University of Hong Kong, China, November 2015.

• • "On Lagrangian submanifolds in the Euclidean spaces"

East Asian Symplectic Conference 2013, Kagoshima University, Japan, September 2013.

• • "On Lagrangian submanifolds in the Euclidean spaces"

Geometry and Foliations 2013, University of Tokyo, Japan, September 2013.

• • "Basic construction of Lagrangian sphere in $\mathbb{R}^6$" (Poster)

Todai Forum 2011 Geometry and Dynamics, École normale supérieure de Lyon, France, October 2011.

Domestic Conferences

• • "Cut loci for non-convex polyhedra"

Intuitive Geometry 2021, Online, March 2021.

• • "Cut loci for non-convex polyhedra"

Geometry meeting on geodesics and related topics, Online, January 2021.

• • "Stabilized convex symplectic manifolds are Weinstein"

Geometry of foliations and its applications, Online, December 2020.

• • "Cut loci for non-convex polyhedra" (The workshop has been cancelled)

Intuitive Geometry 2020, Sugiyama Jogakuen University, March 2020.

• • "Cut loci for non-convex polyhedra"

WINTER FESTA Episode 5, Hitotsubashi Hall, December 2019.

• • "3D shape analysis via Morse theory for distance functions"

WINTER FESTA Episode 4, Hitotsubashi Hall, December 2018.

• • "A construction of closed Lagrangian submanifolds of minimal Maslov number 1"

Geometry of foliations and its applications, Kyoto University of Education, December 2018.

• • "A construction of Lagrangian submanifolds via Lagrangian caps"

Topics on Lagrangian submanifolds and Hamiltonian dynamics, Chiba University, July 2018.

• • "Survey on the theory of Lagrangian caps"

Topics on Lagrangian submanifolds and Hamiltonian dynamics, Chiba University, July 2018.

• • "On 3-dimensional Lagrangian submanifolds"

The 40th Izu Topology Seminar, Hotel Izu-Garden, March 2017.

• • "On Lagrangian submanifolds in the complex projective spaces"

Holomorphic vector fields, foliations, and related topics, Kyoto University of Education, December 2015.

• • "On Lagrangian submanifolds in $\mathbb{C}P^3$ and in $\mathbb{C}P^1\times\mathbb{C}P^2$"

The 38th Topology Seminar, Yamaki-Ryokan, March 2015.

• • "On Engel structures on $\mathbb{R}^4$ and their transverse hypersurfaces"

The 37th Topology Seminar, Ikoinomura-Tateyama, March 2014.

• • "On Lagrangian embeddings of parallelizable manifolds into the Euclidean spaces"

Owase Differential Topology 2013, Owase Chuo-Kominkan, August 2013.

• • "On Lagrangian embeddings of closed parallelizable manifolds into $\mathbb{R}^{2n}$"

The 36th Topology Seminar, Ikoinomura-Tateyama, March 2013.

• • "On Lagrangian embeddings of closed orientable 3-manifolds into $\mathbb{R}^6$"

Contact Structures, Singularities, Differential Equations, and related topics, College-Plaza, January 2013.

• • "Basic construction of Lagrangian sphere in $\mathbb{R}^{6}$" (Poster)

Distributions on Manifolds and Diffeomorphism Groups 2011, Tambara Institute, November 2011.

• • "Basic construction of Lagrangian sphere in $\mathbb{R}^{6}$"

Owase Differential Topology 2011, Owase Chuo-Kominkan, August 2011.

Seminars

• • "Stabilized convex symplectic manifolds are Weinstein"

Differential Topology Seminar, Kyoto University, October 2021.

• • "On Lagrangian embeddings of closed non-orientable 3-manifolds"

Kyoto Young Topologists Seminar, RIMS, Kyoto University, July 2019.

• • "On 3-dimensional Lagrangian submanifolds"

Geometry Colloquium, Hokkaido University, May 2017.

• • "On Lagrangian submanifolds in the complex projective spaces"

Symplectic Geometry Seminar, Stanford University, March 2016.

• • "On Lagrangian submanifolds in the complex projective spaces"

Differential Topology Seminar, Kyoto University, May 2015.

• • "On Lagrangian caps and their applications"

Tuesday Seminar on Topology, University of Tokyo, January 2015.

• • "On subcritical isotropic submanifolds in $\mathbb{C}^n$"

Topology Seminar, Gakushuin University, January 2014.

• • "On h-principles in some geometries and their applications"

Geometry Colloquium, Hokkaido University, November 2013.

• • "On Lagrangian embeddings of parallelizable manifolds"

Geometry Seminar, Tokyo Metropolitan University, May 2013.

Others

• • TA session at MSRI Summer Graduate School "H-principle", Tambara Institute, Japan, June 2018.

  • A rapid course in h-Principle (5 talks), Workshop in h-Principle, Hokkaido University, November 2013.