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71 papers · 1 filter
Torsion classes in the cohomology of KHT Shimura varieties
Pascal Boyer
A particular case of Bergeron-Venkatesh's conjecture predicts that torsion classes in the cohomology of Shimura varieties are rather rare. According to this and for Kottwitz-Harris…
Witt and Cohomological Invariants of Witt Classes
Nicolas Garrel
We classify all invariants of the functor (powers of the fundamental ideal of the Witt ring) with values in , that it to say functions compatible…
Homotopy morphisms between convolution homotopy Lie algebras
Daniel Robert-Nicoud, Felix Wierstra
In previous works by the authors, a bifunctor was associated to any operadic twisting morphism, taking a coalgebra over a cooperad and an algebra over an operad, and giving back th…
Resetting Piezoresponse Force Microscopy: Towards a real quantitative technique
A. Gomez, H. T. T Nong, S. Mercone +2
A nanometric needle sensor mounted in an Atomic Force Microscopy allows systematic picometer-range distance measurements. This force sensing device is used in Piezoresponse Force M…
Thickness-dependence of the Dzyaloshinskii-Moriya interaction in Co2FeAl ultrathin films: effects of the annealing temperature and the heavy metal material
M. Belmeguenai, Y. Roussigné, S. M. Chérif +8
Interfacial Dzyaloshinskii-Moriya interaction (iDMI) has been investigated in Co2FeAl (CFA) ultrathin films of various thicknesses (0.8 nm<tCFA<2 nm) grown on Si substrates, using…
A Renormalizable SYK-type Tensor Field Theory
Joseph Ben Geloun, Vincent Rivasseau
In this paper we introduce a simple field theoretic version of the Carrozza-Tanasa-Klebanov-Tarnopolsky (CTKT) "uncolored" holographic tensor model. It gives a more familiar interp…