Sergio Chaves

Active Learning Postdoctoral Associate

Publications

  • Chaves, S. The Quotient Criterion for Syzygies in Equivariant Cohomology for Elementary Abelian 2-Group Actions. La Matematica (2024).
  • Chaves, S. The equivariant cohomology for semidirect product actions.  JP Journal of Topology and Geometry (2024).  (Accepted/To Appear)
  • Chaves, S.  The equivariant cohomology for cyclic group actions on some polyhedral productsArXiv preprint: 2206.11747  (2022).

Inhyeok Choi

Harry Kesten Assistant Professor

Publications

  • Confine subgroups in groups with contracting elements. With Ilya Gekhtman, Wenyuan Yang and Tianyi Zheng. Preprint, arXiv:2405.09070
  • Random walks and contracting elements I: Deviation inequality and limit laws. Preprint, arXiv:2207.06587
  • Pseudo-Anosovs are exponentially generic in mapping class groups. To appear in Geometry & Topology, arXiv:2110.06678
  • Central limit theorem and geodesic tracking on hyperbolic spaces and Teichmüller spaces. Advances in Mathematics, Vol. 431 (2023), 109236
  • Linear growth of translation lengths of random isometries on Gromov hyperbolic spaces and Teichmüller spaces. With Hyungryul Baik and Dongryul M. Kim. JIMJ.

Isaac Broudy

Ph.D. Student

Thea Rugg

Ph.D. Student

Kelly Pohland

Lecturer

Publications

  • The RO(C3)-graded Bredon cohomology of C3-surfaces in Z/3-coefficients, arXiv preprint at arXiv:2306.03948 (2023)
  • RO(C3)-graded Bredon cohomology and Cp-surfaces, University of Oregon thesis (2022)
  • University of Oregon AWM Chapter: Creation and Evolution. With E. Bellah, S. Frei, and L. Merill, appearing in Fifty Years of Women in Mathematics: Reminiscences, History, and Visions for the Future of AWM (2022)

Matthew Haulmark

Visiting Assistant Professor

Publications

  • Haulmark M., Hruska G. C., On canonical splittings of relatively hyperbolic groups, To appear, Israel Journal of Mathematics (31 pages)

  • Haulmark M., Schreve K., Minimal volume entropy of RAAG’s, Bulletin of the LMS 55 (2023), no. 2, 879-885 (6 pages)

  • Dani P., Haulmark M., Walsh G., Right-angled Coxeter groups with non-planar boundary, Groups, Geometry, and Dynamics 17 (2023) 127-155 (28 pages)

  • Haulmark M., Mihalik M., On relatively hyperbolic groups with semistable peripherals, International Journal of Algebra and Computation 32 (2022) no. 4, 753-783

  • Haulmark M., Mihalik M., Piecewise visual, linearly connected metrics on boundaries of relatively hyperbolic groups, J. of Topology and Analysis Vol 0 (2021) no. 0, 1-47

  • Haulmark M., Nguyen H., Tran H.C., On the relative hyperbolicity and manifold structure of certain right-angled Coxeter groups, International Journal of Algebra and Computation 30 (2020) no.3 501-53

  • Haulmark M., Hruska G. C., Sayathe B., Non-hyperbolic groups with Menger curve boundary, L’Enseignement Mathématique (2) 65 (2019) 207-220

  • Haulmark M., Local cut points and splittings of relatively hyperbolic groups, Algebraic & Geometric Topology, 19-6 (2019), 2795–2836

  • Haulmark M., Boundary classification and 2-ended splittings of groups with isolated flats, Journal of Topology, 11(3):645-665 (2018)

Xingzhe Li

Ph.D. Candidate

Juliet Aygun

Ph.D. Student

Nima Hoda

NSERC H.C. Wang Visiting Assistant Professor

Publications

  • T. Haettel, N. Hoda, H. Petyt, The coarse Helly property, hierarchical hyperbolicity, and semihyperbolicity, Geom. Topol., to appear, 35 pages.

  • N. Hoda, Shortcut Graphs and Groups, Trans. Am. Math. Soc. 375 (2022), no. 4, 2417–2458.

  • N. Hoda, Quadric Complexes, Mich. Math. J. 69 (2020), no. 2, 241–271.

David Freund

Lecturer

Publications

  • Complexity of virtual multistrings, Comm. Contemp. Math. (2021), https://doi.org/10.1142/S0219199721500668.

  • Multistring based matrices, J. Knot Theory Ramifications 29(6) (2020), 2050038.

  • Minimizing intersection points of curves under virtual homotopy, with V. Chernov and R. Sadykov, J. Knot Theory Ramificiations 29(3) (2020), 2050007.

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