Sangrok Oh
Research Interest
Geometric group theory
CAT(0) cube complexes and CAT(0) spaces
Quasi-isometry invariant
Right-angled Artin groups and their (outer) automorphism groups
Publications
Published/Accepted in peer-reviewed journals/proceedings
"Quasi-isometry invariant of weakly special square complexes" in Topology and its applications [Journal Link] (online published on 2021.12.17), and its Corrigendum (on 2023.09.01). The arxiv version [arXiv] is the one in which everything in Corrigendum is revised.
"Automorphism and outer automorphism groups of RAAGs are not relatively hyperbolic" (with J. Kim and P. Tranchida) in Bulletin of the Australian Mathematical Society [arXiv][Journal Link] (accepted on 2021.11.14, online published on 2022.01.24).
Preprints
Liftable automorphisms of RAAGs (with D. Seo and P. Tranchida) [arXiv]
Honors and Awards
The Presidential Science Scholarship, Feb. 2007 - Feb. 2011, Korea
Research Grant(2022R1I1A1A01066147), Geometry of graph braid groups, June 2022 - May 2023, KRW 70Million, National Research Foundation, Korea
Invited talks and lectures
Feb 26~29, 2024, KNU Mathematics Intensive Lecture Series, Kyungpook National University, Republic of Korea
Title: Introduction to Geometric Group Theory (Link to the webpage).
Sep 2023, Spanish-Polish Mathematical Meeting, Łódź, Poland
Title: Large scale geometry of graph 2-braid groups.
Feb 2023, Configuration spaces and related topics, Kyungpook National University, Republic of Korea
Title: Large scale geometry of graph 2-braid groups.
May 2022, PK2 Topology Workshop, Jeju Island, Republic of Korea
Title: Large scale geometry of Out(RAAG).
May 2022, Euler seminar in Korea, online
Title: Quasi-isometry invariants of CAT(0) cube complexes.
Jan 2022, The 17th East Asian Conference on Geometric Topology, KIAS/online
Title: Quasi-isometric classification of 2-dimensional RAAGs.
Jan 2021, The 16th East Asian Conference on Geometric Topology, Tokyo/online
Title: Quasi-isometry invariant of weakly special square complexes.
Dec 2020, CUNY Geometry and Topology Seminar, Online
Title: Quasi-isometry invariant of weakly special square complexes.
Feb 2017, The 12th East Asian School of Knots and Related Topics, The University of Tokyo, Japan
Title: Quasi-isometric classification of planar graph 2-braid groups.
Jul 2016, The 14th Geometric Topology Fair in Korea, KAIST, Republic of Korea
Title: Quasi-isometric classification of planar graph 2-braid groups.
Jan 2016, The 11th East Asian School of Knots and Related Topics, Osaka City Univ., Japan
Title: Quasi-isometric maps between graph 2-braid groups and right-angled Artin groups.
Jan 2015, The 10th East Asian School of Knots and Related Topics, East China Normal Unuv., China
Title: Quasi-isometric invariants of graph 2-braid groups.