Sangrok Oh

Publications

Published/Accepted in peer-reviewed journals/proceedings

1. "Quasi-isometry invariant of weakly special square complexes" in Topology and its applications [Journal Link] (published on 2022.02.15), and its Corrigendum (on 2023.09.01). The arxiv version [arXiv] is the one in which everything in Corrigendum is revised.

2. "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] (online published on 2022.01.24).

3. Correction to "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] (online published on 2024.04.30).

4. Liftable automorphisms of RAAGs (with D. Seo and P. Tranchida) in Journal of Group Theory [arXiv][Journal Link] (online published on 2024.12.03). 

Preprints

1. "Quasi-isometry classification of certain graph 2-braid groups and its applications" in [arXiv].

Preparation

2. Right-angled Artin subgroups

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.