Corinna Ulcigrai (born 3 January 1980,Trieste)[1] is an Italianmathematician working ondynamical systems.[2] With Krzysztof Frączek in 2013, Ulcigrai is known for proving that in theEhrenfest model (a mathematical abstraction of billiards with an infinite array of rectangular obstacles, used to model gas diffusion) most trajectories are notergodic.[1]
Ulcigrai obtained her Ph.D. in 2007 fromPrinceton University withYakov Sinai as her thesis advisor.[2][3] She has worked at theUniversity of Bristol,United Kingdom.[4] and is currently a professor at theUniversity of Zurich,Switzerland.
Ulcigrai was awarded theEuropean Mathematical Society Prize in 2012,[2][5] and theWhitehead Prize in 2013.[4]
In 2020, Ulcigrai was the winner of theMichael Brin Prize in Dynamical Systems, "for her fundamental work on the ergodic theory of locally Hamiltonian flows on surfaces, of translation flows on periodic surfaces and wind-tree models, and her seminal work on higher genus generalizations of Markov and Lagrange spectra".[6]
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