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Preprints 540 records found  beginprevious496 - 505nextend  jump to record: Search took 0.00 seconds. 
496.
18 p, 206.3 KB Convergence of singular integrals with general measures / Mattila, Pertti ; Verdera, Joan (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Centre de Recerca Matemàtica
We show that L2-bounded singular integrals in metric spaces with respect to general measures and kernels converge weakly. This implies a kind of average convergence almost everywhere. For measures with zero density we prove the almost everywhere existence of principal values.
Centre de Recerca Matemàtica 2006 (Prepublicacions del Centre de Recerca Matemàtica ; 720)  
Detailed record - Creative Commons
497.
17 p, 222.6 KB Parabolic and quasiparabolic subgroups of free partially commutative groups / Duncan, A. J. ; Kazachkov, I. V. ; Remeslennikov, V. N. ; Centre de Recerca Matemàtica
Let Γ be a finite graph and G be the corresponding free partially commutative group. In this paper we study subgroups generated by vertices of the graph Γ, which we call canonical parabolic subgroups. [...]
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 761)  
Detailed record - Creative Commons
498.
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)  
Detailed record - Creative Commons
499.
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)  
Detailed record - Creative Commons
500.
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)  
Detailed record - Creative Commons
501.
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)  
Detailed record - Creative Commons
502.
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)  
Detailed record - Creative Commons
503.
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)  
Detailed record - Creative Commons
504.
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)  
Detailed record - Creative Commons
505.
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)  
Detailed record - Creative Commons

Preprints : 540 records found   beginprevious496 - 505nextend  jump to record:
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