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Prepublicacions 538 registres trobats  inicianterior496 - 505següentfinal  anar al registre: La cerca s'ha fet en 0.00 segons. 
496.
32 p, 318.1 KB Orthogonal systems in finite grahps / Duncan, A. J. ; Kazachkov, I. V. ; Remeslennikov, V. N. ; Centre de Recerca Matemàtica
To a finite graph there corresponds a free partially commutative group: with the given graph as commutation graph. In this paper we construct an orthogonality theory for graphs and their corresponding free partially commutative groups. [...]
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 760)  
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497.
19 p, 234.8 KB Well-posedness and invariant measures for HJM models with deterministic volatility and Lévy noise / Marinelli, Carlo ; Centre de Recerca Matemàtica
We give sufficient conditions for existence, uniqueness and ergodicity of invariant measures for Musiela's stochastic partial differential equation with deterministic volatility and a Hilbert space valued driving Lévy noise. [...]
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 759)  
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498.
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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499.
18 p, 200.4 KB Data size sufficiency analyses of haplotype inference algortihms / Cleary, Sean ; St. John, Katherine ; Centre de Recerca Matemàtica
We present experimental and theoretical analyses of data requirements for haplotype inference algorithms. Our experiments include a broad range of problem sizes under two standard models of tree distribution and were designed to yield statistically robust results despite the size of the sample space. [...]
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 757)  
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500.
29 p, 287.8 KB Variational inequalities in Hilbert spaces with measures and optimal stopping problems / Barbu, Viorel ; Marinelli, Carlo ; Centre de Recerca Matemàtica
We study the existence theory for parabolic variational inequalities in weighted L2 spaces with respect to excessive measures associated with a transition semigroup. We characterize the value function of optimal stopping problems for finite and infinite dimensional diffusions as a generalized solution of such a variational inequality. [...]
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 756)  
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501.
40 p, 330.9 KB The existence of periodic solutions of a two dimensional Lattice / Tan, Jinggang ; Centre de Recerca Matemàtica
We consider a two dimensional lattice coupled with nearest neighbor interaction potential of power type. The existence of infinite many periodic solutions is shown by using minimax methods.
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 755)  
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502.
26 p, 254.4 KB Projective modules over the Gerasimov-Sakhaev counterexample / Dubrovin, Nikolay ; Prihoda, Pavel ; Puninski, Gena ; Centre de Recerca Matemàtica
We investigate the structure of the so-called Gerasimov- Sakhaev counterexample, which is a particular example of a universal localization, and classify (both finitely and infinitely generated) projective modules over it.
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 754)  
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503.
27 p, 298.2 KB Permutations defining convex permutominoes / Bernini, Antonio ; Disanto, Filippo ; Pinzani, Renzo ; Rinaldi, Simone ; Centre de Recerca Matemàtica
"Vegeu el resum a l'inici del document del fitxer adjunt".
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 753)  
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504.
16 p, 103.4 KB Contraction groups in complete Kac-Moody groups / Baumgartner, Udo ; Ramagge, Jacqui ; Rémy, Bertrand ; Centre de Recerca Matemàtica
Let G be an abstract Kac-Moody group over a finite field and G the closure of the image of G in the automorphism group of its positive building. We show that if the Dynkin diagram associated to G is irreducible and neither of spherical nor of affine type, then the contraction groups of elements in G which are not topologically periodic are not closed. [...]
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 752)  
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505.
47 p, 359.5 KB Twisted Reidemeister torsion for twist knots / Dubois, Jérôme ; Huynh, Vu ; Yamaguchi, Yoshikazu ; Centre de Recerca Matemàtica
The aim of this paper is to give an explicit formula for the SL2(C)-twisted Reidemeister torsion as defined in [6] in the case of twist knots. For hyperbolic twist knots, we also prove that the twisted Reidemeister torsion at the holonomy representation can be expressed as a rational function evaluated at the cusp shape of the knot. [...]
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 751)  
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Prepublicacions : 538 registres trobats   inicianterior496 - 505següentfinal  anar al registre:
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