Faculty Surveys
The Ohio State University
Year 2025-2026
Time: (Fall 2025) Thursdays 3:00-3:55 pm
Location: Scott Lab E001
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On Thursdays when colloqiua are not organized, the department hosts a Faculty Surveys series. The goal of Faculty Surveys is to give an opportunity to new postdoctoral fellows and tenure track professors to introduce themselves to their colleagues and graduate students. The talks are intended to be non-technical and accessible to the whole department.
Schedule of talks:
Abstracts
(B. Liu): Kleinian groups are discrete isometry subgroup of hyperbolic spaces. The action on the spaces is quite related to the geometry and dynamics of the quotient manifolds. I will introduce Kleinian groups of divergence type, which is equipped with nice dynamical features. Furthermore, if the group is a subgroup of a lattice, we show that the divergence type implies that random walks on the Schreier graph associated with the group is recurrent. The main ingredient is a connections among orbit counting of the group action on hyperbolic spaces, the volume growth rate of the quotient manifolds, and the growth rate of the Schreier graph.
(M. Lipnowski):
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