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Affiliation |
College of Education, Department of School Education , Specialization in Mathematics Education |
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Job Title |
Associate Professor |
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Mail Address |
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Related SDGs |
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YAMAGATA Saeko
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ORCID
The Best Research Achievement in Research Career 【 display / non-display 】
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【Published Thesis】 Notes on relatively hyperbolic groups and relatively quasiconvex subgroups. 2015
【Published Thesis】 Commensurators of surface braid groups. 2011
【Published Thesis】 The girth of convergence groups and mapping class groups. 2011
The Best Research Achievement in the last 5 years 【 display / non-display 】
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【Published Thesis】 On Relative Hyperbolicity for a Group and Relative Quasiconvexity for a Subgroup 2019.06
Campus Career 【 display / non-display 】
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2021.4
Duty Yokohama National UniversityCollege of Education Department of School Education Specialization in Mathematics Education Associate Professor
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2017.4-2021.3
Duty Yokohama National UniversityCollege of Education Department of School Education Specialization in Mathematics Education Associate Professor
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2014.4-2017.3
Duty Yokohama National UniversityCollege of Education and Human Sciences Department of School Education Specialization in Mathematics Education Associate Professor
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2012.4-2014.3
Duty Yokohama National UniversityCollege of Education and Human Sciences Department of School Education Specialization in Mathematics Education Lecturer
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2021.4
Concurrently Yokohama National UniversityInterfaculty Graduate School of Innovative and Practical Studies Associate Professor
Papers 【 display / non-display 】
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On Relative Hyperbolicity for a Group and Relative Quasiconvexity for a Subgroup
Matsuda Yoshifumi, Oguni Shin-ichi, Yamagata Saeko
TOKYO JOURNAL OF MATHEMATICS 42 ( 1 ) 83 - 112 2019.6 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Notes on relatively hyperbolic groups and relatively quasiconvex subgroups
Yoshifumi Matsuda, Shin-ichi Oguni, Saeko Yamagata
38 99 - 123 2015.6 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Automorphisms of the Torelli complex for the one-holed genus two surface
Yoshikata Kida, Saeko Yamagata
37 335 - 372 2014.12 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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The universal relatively hyperbolic structure on a group and relative quasiconvexity for subgroups
Yoshifumi Matsuda, Shin-ichi Oguni, Saeko Yamagata
Analysis and geometry of discrete groups and hyperbolic spaces, RIMS Kôkyûroku Bessatsu B48 73 - 93 2014.6 [Reviewed] [Invited]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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C^*-simplicity for groups with non-elementary convergence group actions
Yoshifumi Matsuda, Shin-ichi Oguni, and Saeko Yamagata
39 1291 - 1299 2013.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
Review Papers 【 display / non-display 】
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曲面上の組み紐群が作用する複体の自己同型について
山形紗恵子
数理解析研究所講究録 1728 32 - 39 2011.2
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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Coxeter 群の境界について
山形紗恵子
城崎新人セミナー報告集 25 - 28 2006.6
Language：Japanese Publishing type：Meeting report Single Work
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On boundaries of some Coxeter groups
山形紗恵子
数理解析研究所講究録 1492 37 - 42 2006.5
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
Awards 【 display / non-display 】
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川井賞
2003.3 財団法人川井数理科学財団
Individual or group name of awards：山形紗恵子
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ヨシ・エス・クノ奨学賞
2000.6 東北大学
Individual or group name of awards：山形紗恵子
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青葉理学振興会奨励賞
2000.3 青葉理学振興会
Individual or group name of awards：山形紗恵子
Grant-in-Aid for Scientific Research 【 display / non-display 】
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群の相対的双曲構造
2015.4 - 2020.3
科学研究費補助金 Grant-in-Aid for Young Scientists(B)
Investigator(s)：山形紗恵子
Grant type：Competitive
Other external funds procured 【 display / non-display 】
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負曲率空間上の分枝ランダムウォークの研究
2021.4 - 2022.3
学長戦略経費（若手研究者の研究活動支援分）
Authorship：Principal investigator
Presentations 【 display / non-display 】
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群の相対的双曲性について
山形紗恵子 [Invited]
Rigidity seminar
Event date： 2013.10
Language：Japanese Presentation type：Oral presentation (invited, special)
Venue：名古屋大学
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Torelli 複体の自己同型について
山形紗恵子 [Invited]
距離の幾何学探求勉強会
Event date： 2013.3
Language：Japanese Presentation type：Oral presentation (invited, special)
Venue：琵琶湖コンファレンスセンター
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Commensurators of surface braid groups
[Invited]
Rigidity School, Tokyo 2011/2012
Event date： 2012.3
Language：English Presentation type：Oral presentation (invited, special)
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Relatively hyperbolic structures on groups
[Invited]
Event date： 2011.10
Language：Japanese Presentation type：Oral presentation (invited, special)
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Relatively hyperbolic groups and relatively quasiconvex subgroups
Saeko Yamagata [Invited]
Event date： 2011.9
Language：Japanese Presentation type：Oral presentation (invited, special)
Charge of on-campus class subject 【 display / non-display 】
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2024 Topics in Geometry Ⅱ
Interfaculty Graduate School of Innovative and Practical Studies
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2024 Topics in Geometry Ⅰ
Interfaculty Graduate School of Innovative and Practical Studies
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2024 Senior Thesis / Projects
College of Education
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2024 Project Studies B (Seminar)
College of Education
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2024 Geometry Ⅲ
College of Education
Committee Memberships 【 display / non-display 】
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日本数学会総会
2022.3 - 2023.2 2022年度日本数学会地方区代議員
Committee type：Academic society
Social Contribution(Extension lecture) 【 display / non-display 】
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高校生インターンシップ
Role(s)： Lecturer
横浜国立大学 2018.8
Audience： High school students
Type：Extension Lecture
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高校生インターンシップ
Role(s)： Lecturer
横浜国立大学 2017.8
Audience： High school students
Type：Extension Lecture