Yair Hartman

Papers

• Subalgebras, subgroups, and singularity [arxiv]
  with Tattwamasi Amrutam
  to appear in the Bulletin of the London Mathematical Society

• Tight inclusions of C*-dynamical systems [arxiv]
  with Mehrdad Kalantar
  to appear in Groups, Geometry, and Dynamics

• Random Walks on Dense Subgroups of Locally Compact Groups [journal | arxiv]
  with Michael Björklund and Hanna Oppelmayer
  Trans. Amer. Math. Soc. (2023) 

• Kudo-Continuity Of Entropy Functionals [arxiv]
  with Michael Björklund and Hanna Oppelmayer
  to appear in Annales de l'Institut Henri Poincaré Probabilités et Statistiques

• The Stabilized Automorphism Group of a Subshift [journal | arxiv]
  with Bryna Kra and Scott Schmieding
  International Mathematics Research Notices, 2021, rnab204.

• Stationary C*-dynamical systems [journal |arxiv]
  with Mehrdad Kalantar
  with an appendix with Uri Bader and Mehrdad Kalantar
  J. Eur. Math. Soc. (2022)

• Choquet-Deny groups and the infinite conjugacy class property [journal | arxiv]
  with Josh Frisch, Omer Tamuz and Pooya Vahidi Ferdowsi
  Annals of Mathematics Vol. 190, No. 1 (July 2019), pp. 307-320

• Thompson's group F is not strongly amenable [journal | arxiv]
  with Kate Juscheno, Omer Tamuz and Pooya Vahidi Ferdowsi
  Ergodic Theory and Dynamical System Journal, 39 (2019) , pp. 925-929

• Furstenberg Entropy of Intersectional Invariant Random Subgroups [journal | arxiv]
  with Ariel Yadin
  Compositio Mathematica 154 (10), 2239-2265

• Generic stationary measures and actions [journal | arxiv]
  with Lewis Bowen and Omer Tamuz
  Trans. Amer. Math. Soc. 369 (2017) 4889-4929

• Stabilizer rigidity in irreducible group actions [journal | arxiv]
  with Omer Tamuz
  Israel Journal of Mathematics, October 2016, Volume 216, Issue 2, pp 679-705

• Property (T) and the Furstenberg Entropy of Nonsingular Actions [journal | arxiv]
  with Lewis Bowen and Omer Tamuz
  Proceedings of the American Mathematical Society, 144, no. 1 (2016): 31-39

• Furstenberg entropy realizations for virtually free groups and lamplighter groups [journal|arxiv]
  with Omer Tamuz
  Journal d'Analyse Mathématique, April 2015, Volume 126, Issue 1, pp 227-257

• An Abramov formula for stationary spaces [journal | arxiv]
  with Yuri Lima and Omer Tamuz
  Ergodic Theory and Dynamical Systems, 34 (2014), pp 837-853

• Large semigroups of cellular automata [journal | arxiv]
  Ergodic Theory and Dynamical Systems, 32 (2012), pp 1991-2010

From the web

• A talk in the GGD seminar at University of Illinois at Urbana-Champaign.

• A popular article in Popular Mechanics.

• הרצאת מבוא על תחום המחקר שלי: רגע, לאן נעלמו כל הפונקציות ההרמוניות?

Teaching

• Stationary Dynamics: link to the course's website. The course was based on the preliminary version of my lecture notes. Use with caution: there might be mistakes there and you're welcome to let me know about them!