So Yamagata

Profile Information

Affiliation: Assistant professor, Faculty of Science Department of Applied Mathematics, Fukuoka University

Degree: The degree of Doctor of Philosophyin the field of Mathematics at the Graduate School of Science,(Mar, 2021, Hokkaido University)

J-GLOBAL ID: 201701000677901986
researchmap Member ID: B000272427

External link: https://sites.google.com/site/yamagatasomathchorus/home?authuser=0

Research Areas

Research Interests

Education

Apr, 2018 - Mar, 2021

Doctor Course, Department of Mathematics, Grasuate School of Science, Hokkaido University
Apr, 2016 - Mar, 2018

Master Course, Department of Mathematics, Graduate School of Science, Hokkaido University
Apr, 2012 - Mar, 2016

Department of Mathematics, School of Science, Hokkaido University

Research History

Sep, 2022 - Present

Assistant professor, Faculty of Science Department of Applied Mathematics, Fukuoka University
Apr, 2022 - Sep, 2022

Part-time lecturer, College of Agriculture, Food and Environment Sciences Department of Environmental and Symbiotic Science, Rakuno Gakuen University
Apr, 2022 - Sep, 2022

Part-time lecturer, Hokkaido University of Education
Apr, 2022 - Sep, 2022

Researcher, Center for teaching and learning, Hokkaido University
Sep, 2021 - Apr, 2022

Part-time lecturer, Muroran Institute of Technology
Sep, 2021 - Sep, 2022

Part-time lecturer, General Education Fundamental Courses, Hokkaido University
Apr, 2021 - Mar, 2022

JSPS Research Fellow (changed to PD)
Apr, 2021 - Sep, 2021

Part-time teacher, Rakuno Gakuen University
Apr, 2020 - Mar, 2021

JSPS Research Fellow (DC2)
Oct, 2016 - Mar, 2021

Ambitious Leader's Program

Papers

A classification of combinatorial types of discriminantal arrangements

So Yamagata

Journal of Algebraic Combinatorics, 57(4) 1007-1032, Jan 18, 2023 Peer-reviewed
On the non-very generic intersections in discriminantal arrangements

Simona Settepanella, So Yamagata

Comptes Rendus. Mathématique, 360(G9) 1027-1038, Sep 29, 2022 Peer-reviewed
Pappus's Theorem in Grassmannian Gr(3, ℂ^n)

Simona Settepanella, Sumire Sawada, So Yamagata

Ars Mathematica Contemporanea, 16(1) 257-276, Jan 6, 2019 Peer-reviewed
Discriminantal arrangement, 3 x 3 minors of Plucker matrix and hypersurfaces in Grassmannian Gr(3, n)

Sumire Sawada, Simona Settepanella, So Yamagata

COMPTES RENDUS MATHEMATIQUE, 355(11) 1111-1120, Nov, 2017 Peer-reviewed

Misc.

Mapping fiber, loop and suspension graphs in naive discrete homotopy theory

So yamagata

arXiv: 2402.15714., Feb, 2024
A categorification for the characteristic polynomial of matroids

Takuya Saito, So Yamagata

arXiv:2402.09851, Feb, 2024
A braid monodromy presentation for the pure braid group

So Yamagata

arXiv:2305.18697, May, 2023
A splitting property of the chromatic homology

So Yamagata

arXiv:2301.01972, Jan, 2023
A linear condition for non-very generic discriminantal arrangements

Simona Setetpanella, So Yamagata

arXiv:2205.04664, May, 2022
The 16th Mathematics Conference for Young Researchers : MCYR16

豊川永喜, 乙戸勇大, 佐藤直飛, 松坂公暉, 山形颯, 吉田啓佑, 足利涼介, 沖田誠悟, 小山元希, 桑田健 …

Hokkaido University technical report series in Mathematics, 178 1-682, Mar 23, 2020
The 15th Mathematics Conference for Young Researchers : MCYR15

福田一貴, 青木雅允, 植田優基, 上島芳倫, 矢不俊文, 新村貴之, 佐藤直飛, 豊川永喜, 松坂公暉, 山形颯 …

Hokkaido University technical report series in Mathematics, 176 1-646, Mar 12, 2019
The generalization of the Braid arrangement and its combinatorics

Yamagata So

Proceedings of the 24th Algebra Symposium for Young Researchers, 38-46, 2019
Discriminantal arrangement, Plücker matrix and hypersurfaces in Grassmannian

Yamagata So

Hokkaido University Elaboration book, 173 497-506, 2018

Presentations

Presentation of the pure braid group and section of the braid arrangement

So Yamagata

MSJ Spring Meeting 2024, Mar 17, 2024
On discrete relative homotopy groups

9th Mexican Workshop on Applied Geometry and Topology, Nov 10, 2023
A braid monodromy presentation for the pure braid group

So Yamagata

Polynomial Mathematics Seminar, Nov 2, 2023 Invited
A splitting property of the chromatic homology

So Yamagata

Homotopy Okinawa 2023, Jul 1, 2023 Invited
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

So Yamagata

MSJ Spring Meeting 2023, Mar 15, 2023
A characteristic homology for graphic arrangements

So Yamagata

Characteristic Polynomials of Hyperplane Arrangements and Ehrhart Polynomials of Convex Polytopes, Feb 14, 2023 Invited
A classificaion of combinatorial types of discriminantal arrangements

So Yamagata

Combinatorics, geometry and commutative algebra of hyperplane arrangements, Jan 16, 2023 Invited
超平面配置の non very genericy について

山形颯

日本数学会2022年度年会, Mar 29, 2022
Combinatorics of discriminantal arrangement

So YAMAGATA

Conference on Combinatorics and its Applications 2021, Aug 19, 2021
Combinatorics of discriminantal arrangement

So Yamagata

Recent developments in Arrangements, Feb 16, 2021 Invited
Combinatorics of the discriminantal arrangement

Yamagata So

Hyperplane arrangements and Japanese Australian workshop on Real and Complex Singularities, Dec 5, 2019
Combinatorics of the Discriminantal arrangement

Yamagata So

Homotopy Theory Symposium, Oct 29, 2019 Invited
Categorification of a chromatic polynomial

Yamagata So

COmbinatorics Summer school 2019 (COS 2019), Sep 5, 2019
Combinatorics of Discriminantal Arrangement

Yamagata So

Japanese Conference on Combinatorics and its Applications (JCCA-2019), Aug 29, 2019 Invited
Combinatorics of the Discriminantal arrangement and Pappus' theorem

Yamagata So

Discrete Geometric Structure Seminar, Apr 26, 2019 Invited
Pappus’ theorem in Grassmannian

Yamagata So

On hyperplane arrangements, configuration spaces and related topics, Feb 22, 2019 Invited
Generalization of the Braid arrangement and its combinatorial structure

Yamagata So

The 24th conference for young researcher of algebra, Feb 18, 2019
Generalization of braid arrangement and its combinatorics

Yamagata So

MSJ (The Mathematical Society of Japan) Autumn meeting 2018, Sep 28, 2018
Combinatorics of discriminantal arrangement and Pappus' theorem

Yamagata So

PISA-HOKKAIDO-ROMA2 Summer School on Mathematics and Its Applications, Aug 30, 2018
Generalization of Braid arrangement and its combinatorics

Yamagata So

COmbinatorics Summer school 2018, Aug 9, 2018