Tim de Laat
Research
My research areas are functional analysis and analytic group theory.
Publications
- Dynamical propagation and Roe algebras of warped spaces (with Federico Vigolo and Jeroen Winkel), preprint (2023), arXiv version.
- Unitary Lp+-representations of almost automorphism groups (with Antje Dabeler, Emilie Mai Elkiær and Maria Gerasimova), to appear in C.R. Math., arXiv version.
- Actions of higher rank groups on uniformly convex Banach spaces (with Mikael de la Salle), preprint, arXiv version.
- Spectral gap and origami expanders (with Goulnara Arzhantseva, Dawid Kielak and Damian Sawicki), to appear in Comment. Math. Helv., arXiv version.
- Weak*-continuity of invariant means on spaces of matrix coefficients (with Safoura Zadeh), J. Math. Anal. Appl. 506 (2022), Paper No. 125669, published version, arXiv version.
- Group C*-algebras of locally compact groups acting on trees (with Dennis Heinig and Timo Siebenand), Int. Math. Res. Not., rnad259, published version, arXiv version.
- Exotic group C*-algebras of simple Lie groups with real rank one (with Timo Siebenand), Ann. Inst. Fourier (Grenoble) 71 (2021), 2117-2136, published version, arXiv version.
- The Fourier algebra of a rigid C*-tensor category (with Yuki Arano and Jonas Wahl), Publ. Res. Inst. Math. Sci. 54 (2018), 393-410, published version, arXiv version.
- Superexpanders from group actions on compact manifolds (with Federico Vigolo), Geom. Dedicata 200 (2019), 287-302, published version, arXiv version.
- Banach space actions and L2-spectral gap (with Mikael de la Salle), Anal. PDE 14 (2021), 45-76, published version, arXiv version.
- Howe-Moore type theorems for quantum groups and rigid C*-tensor categories (with Yuki Arano and Jonas Wahl), Compos. Math. 154 (2018), 328-341, published version, arXiv version.
- On strong property (T) and fixed point properties for Lie groups (with Masato Mimura and Mikael de la Salle), Ann. Inst. Fourier (Grenoble) 66 (2016), 1859-1893, published version, arXiv version.
- A complete characterization of connected Lie groups with the Approximation Property (with Uffe Haagerup and Søren Knudby), Ann. Sci. Éc. Norm. Supér. 49 (2016), 927-946, published version, arXiv version.
- Approximation properties for noncommutative Lp-spaces of high rank lattices and nonembeddability of expanders (with Mikael de la Salle), J. Reine Angew. Math. 737 (2018), 49-69, published version, arXiv version.
- Strong property (T) for higher rank simple Lie groups (with Mikael de la Salle), Proc. London Math. Soc. 111 (2015), 936-966, published version, arXiv version.
- Simple Lie groups without the Approximation Property II (with Uffe Haagerup), Trans. Amer. Math. Soc. 368 (2016), 3777-3809, published version, arXiv version.
- On the Grothendieck Theorem for jointly completely bounded bilinear forms, T.M. Carlsen et al. (eds.), Operator Algebra and Dynamics, Springer Proc. Math. Stat., Vol. 58, pp. 211-221, Springer, Heidelberg, 2013, published version, arXiv version.
- Approximation properties for noncommutative Lp-spaces associated with lattices in Lie groups, J. Funct. Anal. 264 (2013), 2300-2322, published version, arXiv version.
- Simple Lie groups without the Approximation Property (with Uffe Haagerup), Duke Math. J. 162 (2013), 925-964, published version, arXiv version.
- On the Regularization of the Kepler Problem (with Gert Heckman), J. Symplectic Geom. 10 (2012), 463-473, published version, arXiv version.