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Institut de mathématiques
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+41 32 718 28 00
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Neuchâtel
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Voici les éléments 1 - 10 sur 346
- PublicationMétadonnées seulementArea of ideal triangles and Gromov hyperbolicity in Hilbert Geometry(2008)
; ;Vernicos, ConstantinVerovic, Patrick - PublicationMétadonnées seulement
- PublicationMétadonnées seulement
- PublicationMétadonnées seulementSpace-time integrated least squares: a time-marching approach(2004)
; de Montmollin, GautierA time-marching formulation is derived from the space-time integrated least squares (STILS) method for solving a pure hyperbolic convection equation and is numerically compared to various known methods. Copyright (C) 2004 John Wiley Sons, Ltd. - PublicationMétadonnées seulement
- PublicationMétadonnées seulementIsometric group actions on banach spaces and representations vanishing at infinity(2008)
;De Cornulier, Yvan ;Tessera, RomainOur main result is that the simple Lie group G = Sp( n; 1) acts metrically properly isometrically on L-p( G) if p > 4 n + 2. To prove this, we introduce Property (BP0V), with V being a Banach space: a locally compact group G has Property (BP0V) if every affine isometric action of G on V, such that the linear part is a C-0- representation of G, either has a fixed point or is metrically proper. We prove that solvable groups, connected Lie groups, and linear algebraic groups over a local field of characteristic zero, have Property ( BP V 0). As a consequence, for unitary representations, we characterize those groups in the latter classes for which the first cohomology with respect to the left regular representation on L-2(G) is nonzero; and we characterize uniform lattices in those groups for which the first L-2- Betti number is nonzero. - PublicationAccès libreLower bounds for the first eigenvalue of the Laplacian with zero magnetic field in planar domains(2021-3-26)
; Savo, Alessandro