Results 21 to 30 of about 22,063 (297)
Poisson-generalized geometry and R-flux [PDF]
International Journal of Modern Physics A, 2015 We study a new kind of Courant algebroid on Poisson manifolds, which is a variant of the generalized tangent bundle in the sense that the roles of tangent and the cotangent bundle are exchanged. Its symmetry is a semidirect product of [Formula: see text]-diffeomorphisms and [Formula: see text]-transformations.
Asakawa, Tsuguhiko +3 more
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Poisson Structures for PDEs Associated with Diffeomorphism Groups [PDF]
, 2004 We study Poisson and Lie-Poisson structures on the diffeomorphism groups with a smooth metric spray in connection with dynamics of nonlinear PDEs. In particular, we provide a precise analytic sense in which the time t map for the Euler equations of an ...
Vasylkevych, Sergiy
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Affine Poisson and affine quasi-Poisson T-duality
Nuclear Physics B, 2019 We generalize the Poisson–Lie T-duality by making use of the structure of the affine Poisson group which is the concept introduced some time ago in Poisson geometry as a generalization of the Poisson–Lie group. We also introduce a new notion of an affine
Ctirad Klimčík
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Dynamic Point Cloud Compression Based on Projections, Surface Reconstruction and Video Compression
Sensors, 2021 In this paper we will present a new dynamic point cloud compression based on different projection types and bit depth, combined with the surface reconstruction algorithm and video compression for obtained geometry and texture maps. Texture maps have been
Emil Dumic +2 more
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Poisson structures on affine spaces and flag varieties. I. Matrix affine Poisson space [PDF]
, 2006 The standard Poisson structure on the rectangular matrix variety Mm,n(C) is investigated, via the orbits of symplectic leaves under the action of the maximal torus T ⊂ GLm+n(C).
Brown, K.A., Yakimov, M., Goodearl, K.R.
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Cluster Algebras and Poisson Geometry
Moscow Mathematical Journal, 2003 minor ...
Shapiro, M. +2 more
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Para-Hermitian geometries for Poisson-Lie symmetric σ-models
Journal of High Energy Physics, 2019 The doubled target space of the fundamental closed string is identified with its phase space and described by an almost para-Hermitian geometry. We explore this setup in the context of group manifolds which admit a maximally isotropic subgroup.
Falk Hassler +2 more
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Poisson inverse problems [PDF]
, 2006 In this paper we focus on nonparametric estimators in inverse problems for Poisson processes involving the use of wavelet decompositions. Adopting an adaptive wavelet Galerkin discretization, we find that our method combines the well-known theoretical ...
Antoniadis, Anestis, Bigot, Jérémie
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Classical KMS Functionals and Phase Transitions in Poisson Geometry
, 2023 We study the convex cone of not necessarily smooth measures satisfying the classical KMS condition within the context of Poisson geometry. We discuss the general properties of KMS measures and its relation with the underlying Poisson geometry in analogy ...
Drago, Nicolò +2 more
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A spatial mixed Poisson framework for combination of excess-of-loss and proportional reinsurance contracts [PDF]
, 2009 In this paper a purely theoretical reinsurance model is presented, where the reinsurance contract is assumed to be simultaneously of an excess-of-loss and of a proportional type. The stochastic structure of the set of pairs (claim’s arrival time, claim’s
Cerqueti, R +9 more
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