Prepublicacions i preprints: Recent submissions
Now showing items 21-40 of 589
Equidistribution estimates for Fekete points on complex manifolds
We study the equidistribution of Fekete points in a compact complex manifold. These are extremal point configurations defined through sections of powers of a positive line bundle. Their equidistribution is a known result. ...
Historia del Bosque de los Letrados (Rulin waishi)
Traducció del xinès
Horospheres in hyperbolic geometry
In this paper we investigate the role of horospheres in Integral Geometry and Differential Geometry. In particular we study envelopes of families of horocycles by means of "support maps". We define invariant "linear ...
On Boas-Type Problem
R.P. Boas has found necessary and sufficient conditions of belonging of function to Lipschitz class. From his findings it turned out, that the conditions on sine and cosine coefficients for belonging of function to Lip α(0 ...
Norm inequalities in multidimensional Lorentz spaces
In this paper we obtain necessary and sufficient conditions for double trigonometric series to belong to generalized Lorentz spaces, not symmetric in general. Estimates for the norms are given in terms of coefficients.
The complexity of random ordered structures
"Vegeu el resum a l'inici del document del fitxer adjunt".
One-dimensional solidification of supercooled melts
In this paper a one-phase supercooled Stefan problem, with a nonlinear relation between the phase change temperature and front velocity, is analysed. The model with the standard linear approximation, valid for small ...
Monads in double categories
We extend the basic concepts of Street's formal theory of monads from the setting of 2-categories to that of double categories. In particular, we introduce the double category Mnd(C) of monads in a double category C and ...
Weighted norm inequalities for Fourier transforms of radial functions
"Vegeu el resum a l'inici del document del fitxer adjunt".
Modified differentials and basic cohomology for Riemannian foliations
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. We use this ...
Hard instances of algorithms and proof systems
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Intersection Pairing and intersection motive of surfaces
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 ...
Derived categories and Grothendieck duality
"Vegeu el resum a l'inici del document del fitxer adjunt".
Engineering nanoscale hypersonic phonon transport
Controlling the vibrations in solids is crucial to tailor their mechanical properties and their interaction with light. Thermal vibrations represent a source of noise and dephasing for many physical processes at the quantum ...
Generalized multiresolution analyses with given multiplicity functions
Generalized multiresolution analyses are increasing sequences of subspaces of a Hilbert space H that fail to be multiresolution analyses in the sense of wavelet theory because the core subspace does not have an orthonormal ...
A geometric mechanism of diffusion: Rigorous verification in a priori unstable Hamiltonian systems
In this paper we consider a representative a priori unstable Hamiltonian system with 2+1/2 degrees of freedom, to which we apply the geometric mechanism for diffusion introduced in the paper Delshams et al., Mem.Amer.Math. ...
Weighted Hardy spaces for the unit disc: approximation properties
In this paper we study basic properties of the weighted Hardy space for the unit disc with the weight function satisfying Muckenhoupt's (Aq) condition, and study related approximation problems (expansion, moment and ...
Subgroups of small index in Aut(Fn) and Kazhdan's property (T)
We give a series of interesting subgroups of finite index in Aut(Fn). One of them has index 42 in Aut(F3) and infinite abelianization. This implies that Aut(F3) does not have Kazhdan's property (T) (see [3] and [6] for ...
Conjugacy of piecewise linear Lorenz map that expand on average
For piecewise linear Lorenz map that expand on average, we show that it admits a dichotomy: it is either periodic renormalizable or prime. As a result, such a map is conjugate to a ß-transformation.
