Algebraic Combinatorics meets Probability Theory: Vines and MAT-labeled graphs, BUGCAT Conference, Binghamton University SUNY, October 26-27, 2024
Vines and MAT-labeled graphs, AMS Special Session on Commutative Algebra and its connections to Combinatorics, University of Texas at San Antonio, September 14-15, 2024
Worpitzky-compatible sets and the freeness of arrangements between Shi and Catalan, Arrangements, Matroids and Logarithmic Vector Fields, Oberwolfach Research Institute for Mathematics, Germany, June 16-21, 2024
Vines and MAT-labeled graphs, Hyperplane Arrangements 2023, Rikkyo University, Ikebukuro Campus, Japan, December 11-15, 2023
Vines and MAT-labelings, Workshop "Singularities, arrangements, and low-dim. topology" IV, JSPS-VAST Bilateral Joint Research Project, FPT University Quy Nhon, Vietnam, September 11-15, 2023
A short introduction to arrangements of hyperplanes, A virtual math conference to celebrate the 85th birthday of Prof. Moshe Rosenfeld, Vietnam, March 19, 2023
Old and new results on freeness properties of reflection arrangements, Spring School: Real, Complex, and Symplectic Reflection Groups, Ruhr-Universität Bochum, Germany, March 6-10, 2023
Flag-accurate arrangements, Characteristic Polynomials of Hyperplane Arrangements and Ehrhart Polynomials of Convex Polytopes, RIMS, Kyoto University, Japan, February 14-17, 2023
Flag-accurate arrangements, Workshop "Singularities, arrangements, and low-dim. topology" III, JSPS-VAST Bilateral Joint Research Project, Institute of Mathematics VAST, Vietnam, December 19-20, 2022
Arrangements arising from digraphs and freeness of arrangements between Shi and Ish, Arrangements in Ticino, USI-SUPSI campus East, Lugano-Viganello, Switzerland, June 27 - July 1, 2022
Hyperplane arrangements and Ehrhart theory, Combinatorial Coworkspace, Haus Bergkranz, Kleinwalsertal, Austria, March 19-27, 2022
Arrangements arising from digraphs and freeness of arrangements between Shi and Ish, Workshop "Singularities, arrangements, and low-dim. topology", JSPS-VAST Bilateral Joint Research Project, Japan-Vietnam, December 6-10, 2021 (Online)
Arrangements arising from digraphs and freeness of arrangements between Shi and Ish, Workshop on Commutative Algebra and Algebraic Geometry, Institute of Mathematics VAST, Vietnam, November 13-16, 2021 (Online)
Arrangements arising from digraphs and freeness of arrangements between Shi and Ish, Hoi nghi mot so chu de thoi su trong Toan hoc va Ung dung, VNU HUS and VIASM, Vietnam, October 30-31, 2021 (Online)
Period collapse in characteristic quasi-polynomials of integral hyperplane arrangements, Arrangements at Home IV: Geometry and Topology, DTI-SUPSI, Switzerland, June 30 - July 2, 2021 (Online)
Some probabilistic interpretations of $G$-Tutte polynomial, Recent developments in arrangements, Japan, February 15-16, 2021 (Online)
Characteristic and Ehrhart quasi-polynomials for root systems, Logarithmic Vector Fields and Freeness of Divisors and Arrangements: New perspectives and applications, Oberwolfach Research Institute for Mathematics, Germany, January 24-30, 2021 (Online)
Eulerian polynomials for subarrangements of Weyl arrangements, Hội thảo Hình học-Giải tích (Workshop on Geometry and Analysis), Tam Dao, Vinh Phuc, Vietnam, September 27-29, 2019
Eulerian polynomial: A link between characteristic and Ehrhart quasi-polynomials, ミニシンポジウム 超平面配置 (Minisymposium on Hyperplane Arrangements), JCCA - DMIA - SGT, National Institute of Technology Miyakonojo College, Japan, August 27-29, 2019
Eulerian polynomials for subarrangements of Weyl arrangements, Hyperplane Arrangements in Wakkanai, Wakkanai Hokusei Gakuin University, Japan, August 21-23, 2019
Positivity of the coefficients of $G$-Tutte polynomials, Recent advances in matroids and Tutte polynomials, Hokkaido Summer Institute, Hokkaido University, Japan, July 22-26, 2019
Positivity of the coefficients of $G$-Tutte polynomials, New developments in matroid theory, SIAM Conference on Applied Algebraic Geometry, University of Bern, Switzerland, July 9-13, 2019
The exponents of $A_1^2$ restrictions of Weyl arrangements and Ehrhart theory, Arrangements at Western, Western University, Canada, May 21-31, 2019 (Slides)
A combinatorial description of the exponents of $A_1^2$ restrictions of Weyl arrangements, CIMPA - IMH Research School Hyperplane Arrangements: recent advances and open problems, VAST, Vietnam, March 11-22, 2019
Characteristic quasi-polynomials and a connection to Ehrhart theory, The 15th Mathematics Conference for Young Researchers, Hokkaido University, Japan, March 4-7, 2019
A combinatorial description of the exponents of $A_1^2$ restrictions of Weyl arrangements, On hyperplane arrangements, configuration spaces and related topics, Hokkaido University, Japan, February 20-22, 2019
Interpretations for characteristic quasi-polynomials via subspace and toric arrangements, The Second Vietnam Workshop on Graph Theory and Discrete Geometry, VIASM, Vietnam, January 9-13, 2019
Interpretations for characteristic quasi-polynomials via subspace and toric arrangements, The 6th Franco-Japanese-Vietnamese Symposium on Singularities (FJV2018), University of Khanh Hoa, Nha Trang, Vietnam, September 15-21, 2018 (Slides)
Characteristic quasi-polynomial and its applications to root systems, Matroids, Reflection Groups and Free Hyperplane Arrangements, RIMS, Kyoto University, Japan, June 11-15, 2018 (Slides)
$G$-Tutte polynomials via arithmetics, combinatorics and topology, AMS Spring Eastern Sectional Meeting, Special Session on Arrangements of Hypersurfaces, Northeastern University, USA, April 21-22, 2018
$G$-Tutte polynomial via algebraic combinatorics, topology and enumeration, The 14th Mathematics Conference for Young Researchers, Hokkaido University, Japan, February 27 - March 2, 2018
The largest coefficient of the highest root and the second exponent of the Weyl group, PISA-HOKKAIDO Summer School on Mathematics and Its Applications, The University of Pisa, Italy, August 30 - September 13, 2016 (Slides)