YAMAGATA Saeko

Affiliation

College of Education, Department of School Education , Specialization in Mathematics Education

Job Title

Associate Professor

Mail Address

E-mail address

Related SDGs




ORCID  https://orcid.org/0000-0002-8389-0445

The Best Research Achievement in Research Career 【 display / non-display

  • 【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

  • 【Published Thesis】 On Relative Hyperbolicity for a Group and Relative Quasiconvexity for a Subgroup  2019.06

Degree 【 display / non-display

  • Doctor of Science - 

Campus Career 【 display / non-display

  • 2021.04
    -
    Now

    Duty   Yokohama National UniversityCollege of Education   Department of School Education   Specialization in Mathematics Education   Associate Professor  

  • 2017.04
    -
    2021.03

    Duty   Yokohama National UniversityCollege of Education   Department of School Education   Specialization in Mathematics Education   Associate Professor  

  • 2014.04
    -
    2017.03

    Duty   Yokohama National UniversityCollege of Education and Human Sciences   Department of School Education   Specialization in Mathematics Education   Associate Professor  

  • 2012.04
    -
    2014.03

    Duty   Yokohama National UniversityCollege of Education and Human Sciences   Department of School Education   Specialization in Mathematics Education   Lecturer  

  • 2021.04
    -
    Now

    Concurrently   Yokohama National UniversityInterfaculty Graduate School of Innovative and Practical Studies   Associate Professor  

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Papers 【 display / non-display

  • Notes on relatively hyperbolic groups and relatively quasiconvex subgroups

    Yoshifumi Matsuda, Shin-ichi Oguni, Saeko Yamagata

    Tokyo Journal of Mathematics   38   99 - 123   2015.06  [Refereed]

    Joint Work

  • Automorphisms of the Torelli complex for the one-holed genus two surface

    Yoshikata Kida, Saeko Yamagata

    Tokyo Journal of Mathematics   37   335 - 372   2014.12  [Refereed]

    Joint Work

  • 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   2014.06  [Refereed]  [Invited]

    Joint Work

  • C^*-simplicity for groups with non-elementary convergence group actions

    Yoshifumi Matsuda, Shin-ichi Oguni, and Saeko Yamagata

    Houston Journal of Mathematics   39   1291 - 1299   2013.11  [Refereed]

    Joint Work

  • The co-Hopfian property of surface braid groups

    Yoshikata Kida and Saeko Yamagata

    Journal of Knot Theory and Its Ramifications   22   1350055   2013.09  [Refereed]

    Joint Work

    Web of Science DOI

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Grant-in-Aid for Scientific Research 【 display / non-display

  • Grant-in-Aid for Young Scientists(B)

    Project Year: 2015.04  -  2020.03 

Presentations 【 display / non-display

  • Commensurators of surface braid groups

     [Invited]

    Rigidity School, Tokyo 2011/2012  2012.03  

  • Relatively hyperbolic structures on groups

     [Invited]

    2011.10  

  • Relatively hyperbolic structures on groups

     [Invited]

    Probability and Geometry  2011.09  

  • Relatively hyperbolic groups and relatively quasiconvex subgroups

    Saeko Yamagata  [Invited]

    2011.09  

  • Automorphisms of the complexes on which surface braid groups act

    Saeko Yamagata  [Invited]

    2010.10  

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