Yamagata So

ヤマガタソウ | Yamagata So

Affiliation and department：
Job title： Assistant professor
Homepage URL (2)： https://sites.google.com/site/yamagatasomathchorus/japan?authuser=0 , https://sites.google.com/site/yamagatasomathchorus/home?authuser=0

Research field (2)： Geometry , Algebra

Research keywords (4)： (pure) braid group , intersection lattice , discriminantal arrangement , hyperplane arrangement

Research theme for competitive and other funds (8)：

2024 - 2029 離散ホモトピー論の手法による超平面配置の位相幾何的研究
2023 - 2024 Topological study of hyperplane arrangements by the method of braid monodromy
2020 - 2022 Discriminantal arrangement and its combinatorics
2020 - 2021 Clarification of a structure of higher codimension of Discriminantal arrangement and its application
2019 - 2020 Discriminantal arrangement and its combinatorics

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Papers (4)：

So Yamagata. A classification of combinatorial types of discriminantal arrangements. Journal of Algebraic Combinatorics. 2023. 57. 4. 1007-1032
Simona Settepanella, So Yamagata. On the non-very generic intersections in discriminantal arrangements. Comptes Rendus. Mathématique. 2022. 360. G9. 1027-1038
Simona Settepanella, Sumire Sawada, So Yamagata. Pappus's Theorem in Grassmannian Gr(3, C^n). Ars Mathematica Contemporanea. 2019. 16. 1. 257-276
Sumire Sawada, Simona Settepanella, So Yamagata. Discriminantal arrangement, 3 x 3 minors of Plucker matrix and hypersurfaces in Grassmannian Gr(3, n). COMPTES RENDUS MATHEMATIQUE. 2017. 355. 11. 1111-1120

MISC (9)：

So yamagata. Mapping fiber, loop and suspension graphs in naive discrete homotopy theory. arXiv: 2402.15714. 2024
Takuya Saito, So Yamagata. A categorification for the characteristic polynomial of matroids. arXiv:2402.09851. 2024
So Yamagata. A braid monodromy presentation for the pure braid group. arXiv:2305.18697. 2023
So Yamagata. A splitting property of the chromatic homology. arXiv:2301.01972. 2023
Simona Setetpanella, So Yamagata. A linear condition for non-very generic discriminantal arrangements. arXiv:2205.04664. 2022

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Lectures and oral presentations (26)：

Presentation of the pure braid group and section of the braid arrangement
(MSJ Spring Meeting 2024 2024)
On discrete relative homotopy groups
(9th Mexican Workshop on Applied Geometry and Topology 2023)
A braid monodromy presentation for the pure braid group
(Polynomial Mathematics Seminar 2023)
A splitting property of the chromatic homology
(Homotopy Okinawa 2023 2023)
r-setの分類と超平面配置がnon-very genericとなるための十分条件について
(MSJ Spring Meeting 2023 2023)

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Education (3)：

2018 - 2021 Hokkaido University Department of Mathematics, Grasuate School of Science Doctor Course
2016 - 2018 Hokkaido University Department of Mathematics, Graduate School of Science Master Course
2012 - 2016 Hokkaido University School of Science Department of Mathematics

Professional career (1)：

The degree of Doctor of Philosophyin the field of Mathematics at the Graduate School of Science, (Hokkaido University)

Work history (10)：

2022/09 - 現在 Fukuoka University Faculty of Science Department of Applied Mathematics Assistant professor
2022/04 - 2022/09 Rakuno Gakuen University College of Agriculture, Food and Environment Sciences Department of Environmental and Symbiotic Science Part-time lecturer
2022/04 - 2022/09 Hokkaido University of Education Part-time lecturer
2022/04 - 2022/09 Hokkaido University Center for teaching and learning Researcher
2021/09 - 2022/04 Muroran Institute of Technology Part-time lecturer

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Committee career (3)：

2019/04 - 2020/03 The 16th Mathematics Conference for Young Researchers Organizer
2018/04 - 2019/03 The 15th Mathematics Conference for Young Researchers Organizer
2017/12 - 2018/05 The 4th ALP-MD symposium Representative

Awards (2)：

2019/04 - Graduate School of Science, Hokkaido University Graduate School of Science, Excellent Research Encouragement Award
2017/05 - The 3rd MD(Tohoku University)×ALP(Hokkaido University) Symposium Poster Award COUNTING CHAMBERS IN A FLAT

Association Membership(s) (1)：

THE MATHEMATICAL SOCIETY OF JAPAN

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