INVITED TALKS IN INTERNATIONAL CONFERENCES
INVITED TALKS IN INTERNATIONAL CONFERENCES
●Recent works on optimal 1-planar graphs,
The 9th KIAS Combinatorics Workshop,
Broom Vista (Korea), 2015/9/12.
TALKS IN INTERNATIONAL CONFERENCE
●Cubical flips in quadrangulations on closed surfaces,
35th Workshop on topological graph theory,
Nippon Maru Memorial Park (Yokohama, Japan), 2023/11/8
●Partially broken orientations of Eulerian graphs on closed surfaces,
10th Slovenian International Conference on Graphs Theory,
Ramada Resort (Kranjska Gora, Slovenia), 2023/6/22
●Orientations of Eulerian graphs on the plane,
YNU-PSU Joint Mathematical Seminar 2020,
Hat Yai Campus of Prince of Songkla University (Thailand), 2020/2/11
●Non-1-planarity of lexicographic products of graphs,
28th Workshop Cycle and Colorings,
Atrium Hotel (Nov\'y Smokovec, Slovakia), 2019/9/6
●Partially broken orientations of Eulerian plane graphs,
8th Slovenian International Conference on Graph Theory,
Hotel Kompas(Bled), Slovenia, 2019/6/24.
●Partially broken orientations of Eulerian plane graphs,
6th Pacific Workshop on Discrete Mathematics,
Hawai Tokai International College, United States, 2018/11/28.
●Partially broken orientations of Eulerian plane graphs,
30th Workshop on topological graph theory,
Hatoba Hall(Yokohama), Japan, 2018/10/26.
●Exceptional balanced triangulations on surfaces,
The Japanese Conference on Combinatorics and its
Applications, Sendai International Center, Japan, 2018/5/21.
●Balanced subdivisions and flips on surfaces,
The Seventh Workshop Graph Embeddings and Maps on Surfaces,
Grand Hotel Permon, Podbansk\'{e}, Slovakia, 2017/7/31.
●A generating theorem of simple even triangulations with a finitizable
set of reductions,
International Workshop on Combinatorial and Computational Aspects of
Optimization, Topology and Algebra (ACCOTA 2016),
Holiday Inn Resort Los Cabos, Mexico, 2016/11/29.
●Optimal 1-embedded graphs which triangulate other surfaces,
The Fifth Asian Conference on Nonlinear Analysis and Optimization,
Toki Messe, Niigata,, 2016/8/3
●K7-Minors in optimal 1-planar graphs,
The Second Japan-Sino Symposium on Graph Theory,
Combinatorics and Their Applications,
Morito Memorial Hall (Tokyo University of Science), 2015/11/2
●K7-Minors in optimal 1-planar graphs,
8th Slovenian Conference on Graph Theory,
Ramada Resort (Kranjska Gora, Slovenia), 2015/6/26.
●Cube-contractions in 3-connected quadrangulations,
The 25th Workshop on Topological Graph Theory in Yokohama,
Yokohama National University, 2013/11/22.
●Cube-contractions in 3-connected quadrangulations on surfaces,
The Sixth Workshop Graph Embeddings and Maps on Surfaces,
Smolenice castle, Slovakia, 2013/7/18.
●Generating polyhedral quadrangulations of the projective plane,
Sixth Cracow Conference on Graph theory ``ZGORZELISKO'10'',
Hotel Tatry, Poland, 2010/9/16/.
●Re-embeddings of maximum 1-planar graphs,
33rd Australasian Conference on
Combinatorial Mathematics and Combinatorial Computing,
The University of Newcastle, 2009/12/10.
●Optimal 1-planar graphs which triangulate other surfaces,
The 20th Workshop on Topological Graph Theory at Yokohama National University,
2008/11/27.
●N-flips in even triangulations on surfaces,
Topological \& Geometric Graph Theory,
\'{E}cole Normale Su\'{p}erieure, Paris, 2008/5/20.
●N-flips in even triangulations on surfaces,
Thirty-Eighth Southeastern International Conference on Combinatorics, Graph
Theory, and Computing,
Florida Atlantic University, 2007/3/9/.
●N-flips in even triangulations on surfaces,
International Workshop on Discrete Mathematics and its Applications,
Ibaraki University, 2006/8/3.
●Re-embedding structures of 4-connected projective-planar graphs,
$14 + \alpha$th Workshop on Topological Graph Theory at
Yokohama National University, 2003/3/23.
●Triangulations which quadrangulate other closed surfaces,
Com2MaC Conference on Graphs and Combinatorics,
Pohang University of Science and Technology, Korea, 2002/7/8.
●Making a home page on the $1-2-\infty$ Conjecture,
The 10th Workshop on Topological Graph Theory at Yokohama National University,
1998/11/26.
INVITED TALKS IN DOMESTIC CONFERENCES
●良い四角形分割と良くない四角形分割について,
RIMS共同研究「グラフの辺の情報を基にした新たな証明手法の確立」，
京都大学数理解析研究所111号室，2024/3/5．
●オイラーの多面体公式における多重グラフの扱いと三角形及び四角形埋め込みについて,
第71会 大坂組合せ論セミナー，
大坂公立大学梅田サテライト文化交流センター，2023/10/13．
●再埋蔵的視点から見たグラフの1-交差埋め込み,
日本オペレーションズ・リサーチ学会 最適化の基盤とフロンティア研究部会
第８回研究会，新潟大学，2016/10/15．
●閉曲面上のグラフの生成定理について,
第10回組合せ論若手研究集会，
慶應義塾大学矢上キャンパス，2014/2/24．
● 再埋蔵的視点から見たグラフの1-交差埋め込み,
日本数学会・秋季総合分科会・分科会特別講演，九州大学，2012/9/18．
TALKS IN DOMESTIC CONFERENCES
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