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math.PR2023
Formulas for Hitting Times and Cover Times for Random Walks on Groups
Christopher Zhang
Using the results of Ding, Lee, Peres [3], we develop formulas to compute the hitting times and cover times for random walks on groups. We developed an explicit formula for hitting…
math.DS2023
Quasidiagonals in Strata of Translation Surfaces
Christopher Zhang
We classify orbit closures in the product of strata of translation surfaces. Applications exist to joinings of certain Masur-Veech measures.
math.OC2023
Approximate control of parabolic equations with on-off shape controls by Fenchel duality
Camille Pouchol, Emmanuel Trélat, Christophe Zhang
We consider the internal control of linear parabolic equations through on-off shape controls, i.e., controls of the form with and with a prescri…