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Resultados globales: 9 registros encontrados en 0.01 segundos.
Documentos de investigación, Encontrados 9 registros

Documentos de investigación	Encontrados 9 registros

12 p, 213.6 KB

Tensor products of Leavitt path algebras / Ara, Pere, 1959- (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Cortiñas, Guillermo ; Centre de Recerca Matemàtica
Vegeu el resum a l'inici del document del fitxer adjunt.
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1042)

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15 p, 193.3 KB

Spaces with Noetherian cohomology / Castellana, Natàlia ; Franjou, Vincent ; Jeanneret, Alain ; Scherer, Jérôme ; Centre de Recerca Matemàtica
Is the cohomology of the classifying space of a p-compact group, with Noetherian twisted coefficients, a Noetherian module? This note provides, over the ring of p-adic integers, such a generalization to p-compact groups of the Evens-Venkov Theorem. [...]
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca MatemÃ tica ; 1004)

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28 p, 336.7 KB

Modified differentials and basic cohomology for Riemannian foliations / Habib, Georges ; Richardson, Ken ; Centre de Recerca Matemàtica
We define a new version of the exterior derivative on the basic forms of a Riemannian foliation to obtain a new form of basic cohomology that satisfies Poincaré duality in the transversally orientable case. [...]
Centre de Recerca Matemàtica 2010 (Prepublicacions del Centre de Recerca Matemàtica ; 980)

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33 p, 298.1 KB

Formal deformations of Poisson structures in low dimensions / Pichereau, Anne ; Centre de Recerca Matemàtica
In this paper, we study formal deformations of Poisson structures, especially for three families of Poisson varieties in dimensions two and three. For these families of Poisson structures, using an explicit basis of the second Poisson cohomology space, we solve the deformation equations at each step and obtain a large family of formal deformations for each Poisson structure which we consider. [...]
Centre de Recerca Matemàtica 2008 (Prepublicacions del Centre de Recerca Matemàtica ; 814)

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9 p, 209.6 KB

Traverso's isogeny conjecture for p-divisible groups / Nicole, Marc-Hubert ; Vasiu, Adrian ; Centre de Recerca Matemàtica
"Vegeu el resum a l'inici del document adjunt".
Centre de Recerca Matemàtica 2006 (Prepublicacions del Centre de Recerca Matemàtica ; 696)

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18 p, 221.0 KB

Intersection Pairing and intersection motive of surfaces / Wildeshaus, Jörg ; Centre de Recerca Matemàtica
We construct the Chow motive modelling intersection co-homology of a proper surface. We then study its functoriality properties. Using Murre's decompositions of the motive of a desingularization into KÄunneth components [Mr1], we show that such decompositions exist also for the intersection motive.
Centre de Recerca Matemàtica 2006 (Prepublicacions del Centre de Recerca Matemàtica ; 676)

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14 p, 207.3 KB

Note on homology of expanding foliations / Saghin, Radu ; Centre de Recerca Matemàtica
This note contains some remarks about the homologies that can be associated to a foliation which is invariant and uniformly expanded by a diffeomorphism. We construct a family of 'dynamical' closed currents supported on the foliation which help us relate the geometric volume growth of the leaves under the diffeomorphism with the map induced on homology in the case when these currents have nonzero homology.
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 776)

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39 p, 337.3 KB

Pure motives, mixed motives and extensions of motives associated to singular surfaces / Wildeshaus, Jörg ; Centre de Recerca Matemàtica
We first recall the construction of the Chow motive modelling intersection cohomology of a proper surface X and study its fundamental properties. Using Voevodsky's category of effective geometrical motives, we then study the motive of the exceptional divisor D in a non-singular blow-up of X. [...]
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 758)

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27 p, 315.1 KB

Semipurity of tempered Deligne cohomology / Burgos Gil, José Ignacio ; Centre de Recerca Matemàtica
In this paper we define the formal and tempered Deligne cohomology groups, that are obtained by applying the Deligne complex functor to the complexes of formal differential forms and tempered currents respectively. [...]
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 744)

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