Research articles

  • The noncommutative factor theorem for lattices in product groups. (With R. Boutonnet) Preprint 2022. arXiv
  • Pointwise inner automorphisms of almost periodic factors. (With Y. Isono) Preprint 2022. arXiv
  • Charmenability of higher rank arithmetic groups. (With U. Bader and R. Boutonnet) To appear in Ann. H. Lebesgue. arXiv
  • Existentially closed W*-probability spaces. (With I. Goldbring) Math. Z. 301 (2022), 3787–3816. doi arXiv
  • Charmenability of arithmetic groups of product type. (With U. Bader, R. Boutonnet and J. Peterson) Invent. Math. 229 (2022), 929-985. doi arXiv
  • Examples of property (T) II1 factors with trivial fundamental group. (With I. Chifan, S. Das and K. Khan) To appear in Amer. J. Math. arXiv
  • Connes’ bicentralizer problem for q-deformed Araki-Woods algebras. (With Y. Isono) Bull. Lond. Math. Soc. 52 (2020), 1010-1023. doi arXiv
  • Stationary characters on lattices of semisimple Lie groups. (With R. Boutonnet) Publ. Math. Inst. Hautes Études Sci. 133 (2021), 1-46. doi arXiv
  • Structure of extensions of free Araki-Woods factors. (With B. Trom) Ann. Inst. Fourier (Grenoble) 71 (2021), 473-514. doi arXiv
  • Structure of bicentralizer algebras and inclusions of type III factors. (With H. Ando, U. Haagerup and A. Marrakchi) Math. Ann. 376 (2020), 1145-1194. doi arXiv
  • Factoriality, Connes’ type III invariants and fullness of amalgamated free product von Neumann algebras. (With Y. Isono) Proc. Roy. Soc. Edinburgh Sect. A 150 (2020), 1495-1532. doi arXiv
  • Strongly ergodic equivalence relations: spectral gap and type III invariants. (With A. Marrakchi and P. Verraedt) Ergodic Theory Dynam. Systems 39 (2019), 1904-1935. doi corrigendum arXiv
  • Singular MASAs in type III factors and Connes’ bicentralizer property. (With S. Popa) Operator algebras and mathematical physics, 109-122, Adv. Stud. Pure Math., 80, Math. Soc. Japan, Tokyo, 2019. arXiv
  • Fullness and Connes’ τ invariant of type III tensor product factors. (With A. Marrakchi and P. Verraedt) J. Math. Pures Appl. 121 (2019), 113-134. doi arXiv
  • Locally compact groups acting on trees, the type I conjecture and non-amenable von Neumann algebras. (With S. Raum) Comment. Math. Helv. 94 (2019), 185-219. doi arXiv
  • Amenable absorption in amalgamated free product von Neumann algebras. (With R. Boutonnet) Kyoto J. Math. 58 (2018), 583-593. doi arXiv
  • Classification of a family of non almost periodic free Araki-Woods factors. (With D. Shlyakhtenko and S. Vaes) J. Eur. Math. Soc. (JEMS) 21 (2019), 3113-3142. doi arXiv
  • Structure of modular invariant subalgebras in free Araki-Woods factors. (With R. Boutonnet) Anal. PDE 9 (2016), 1989-1998. doi arXiv
  • Strong solidity of free Araki-Woods factors. (With R. Boutonnet and S. Vaes) Amer. J. Math. 140 (2018), 1231-1252. doi arXiv
  • Bi-exact groups, strongly ergodic actions and group measure space type III factors with no central sequence. (With Y. Isono) Comm. Math. Phys. 348 (2016), 991-1015. doi arXiv
  • Rigidity of free product von Neumann algebras. (With Y. Ueda) Compos. Math. 152 (2016), 2461-2492. doi arXiv
  • Asymptotic structure of free product von Neumann algebras. (With Y. Ueda) Math. Proc. Cambridge Philos. Soc. 161 (2016), 489-516. doi arXiv
  • Unique prime factorization and bicentralizer problem for a class of type III factors. (With Y. Isono) Adv. Math. 305 (2017), 402-455. doi arXiv
  • Free independence in ultraproduct von Neumann algebras and applications. (With Y. Isono) J. London Math. Soc. 92 (2015), 163-177. doi arXiv
  • Asymptotic structure of free Araki-Woods factors. (With S. Raum) Math. Ann. 363 (2015), 237-267. doi arXiv
  • Gamma stability in free product von Neumann algebras. Comm. Math. Phys. 336 (2015), 831-851. doi arXiv 
  • Baumslag-Solitar groups, relative profinite completions and measure equivalence rigidity. (With S. Raum) J. Topol. 8 (2015), 295-313. doi arXiv 
  • Amalgamated free product type III factors with at most one Cartan subalgebra. (With R. Boutonnet and S. Raum) Compos. Math. 150 (2014), 143-174. doi arXiv
  • Structure of II1 factors arising from free Bogoljubov actions of arbitrary groups. Adv. Math. 260 (2014), 414-457. doi arXiv
  • A class of II1 factors with an exotic abelian maximal amenable subalgebra. Trans. Amer. Math. Soc. 366 (2014), 3693-3707. doi arXiv
  • Type III factors with unique Cartan decomposition. (With S. Vaes) J. Math. Pures Appl. 100 (2013), 564-590. doi arXiv
  • A class of groups for which every action is W*-superrigid. (With S. Popa and S. Vaes) Groups Geom. Dyn. 7 (2013), 577-590. doi arXiv
  • Approximation properties and absence of Cartan subalgebra for free Araki-Woods factors. (With É. Ricard) Adv. Math. 228 (2011), 764-802. doi arXiv
  • Strongly solid II1 factors with an exotic MASA. (With D. Shlyakhtenko) Int. Math. Res. Not. IMRN 2011, no. 6, 1352-1380. doi arXiv
  • Strongly solid group factors which are not interpolated free group factors. Math. Ann. 346 (2010), 969-989. doi arXiv
  • Structural results for free Araki-Woods factors and their continuous cores. J. Inst. Math. Jussieu 9 (2010), 741-767. doi arXiv
  • Free Araki-Woods factors and Connes’ bicentralizer problem. Proc. Amer. Math. Soc. 137 (2009), 3749-3755. doi arXiv
  • Bass-Serre rigidity results in von Neumann algebras. (With I. Chifan) Duke Math. J. 153 (2010), 23-54. doi arXiv
  • Construction of type II1 factors with prescribed countable fundamental group. J. Reine Angew. Math. 634 (2009), 169-207. doi arXiv
  • On some free products of von Neumann algebras which are free Araki-Woods factors. Int. Math. Res. Not. IMRN 2007, no. 23, Art. ID rnm098, 21 pp. doi arXiv
  • A new construction of factors of type III1. J. Funct. Anal. 242 (2007), 375-399. doi arXiv