Prepublicacions i preprints: Recent submissions
Now showing items 41-60 of 581
Z2Z4-additive codes
Altres ajuts: UAB PNL2006-13
Differentiability of functions of contractions
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The automorphism group of a free-by-cyclic group in rank 2
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Periodic orbits near a heteroclinic loop formed by one dimensional orbit and a 2-dimensional manifold: application to the charged collinear 3-body problem
The paper is devoted to the study of a type of differential systems which appear usually in the study of some Hamiltonian systems with 2 degrees of freedom. We prove the existence of infinitely many periodic orbits on each ...
Sobolev orthogonal polynomials on a simplex
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Green vs. Lempert functions: a minimal example
The Lempert function for a set of poles in a domain of Cn at a point z is obtained by taking a certain infimum over all analytic disks going through the poles and the point z, and majorizes the corresponding multi-pole ...
Free and fragmenting filling length
The filling length of an edge-circuit η in the Cayley 2-complex of a finite presentation of a group is the minimal integer length L such that there is a combinatorial null-homotopy of η down to a base point through loops ...
Periodic orbits in complex Abel equation
This paper is devoted to prove two unexpected properties of the Abel equation dz/dt = z 3 +B(t)z 2 +C(t)z, where B and C are smooth, 2π-periodic complex valuated functions, t ∈ R and z ∈ C. The first one is that there is ...
On moduli of smoothness of fractional order
In this paper we consider the properties of moduli of smoothness of fractional order. The main result of the paper describes the equivalence of the modulus of smoothness and a function from some class.
Semidiscretization and long-time asymptotics of nonlinear diffusion equations
We review several results concerning the long time asymptotics of nonlinear diffusion models based on entropy and mass transport methods. Semidiscretization of these nonlinear diffusion models are proposed and their numerical ...
Translating code-switching and L3. Stieg Larsson's Män som hatar kvinnor in German, French, Italian, Portuguese, English, Catalan and Spanish
El artículo aparecerá en el número 68 de la revista 'Onomázein', correspondiente al segundo trimestre de 2025. Al texto se le ha asignado el DOI 10.7764/onomazein.68.03 por el equipo editor: Pontificia Universidad Católica ...
Contractive probability metrics and asymptotic behavior of dissipative kinetic equations
The present notes are intended to present a detailed review of the existing results in dissipative kinetic theory which make use of the contraction properties of two main families of probability metrics: optimal mass ...
Power laws and scaling of rain events and dry spells in the Catalonia region
We analyze the statistics of rain-event sizes, rain-event durations, and dry-spell durations in a network of 20 rain gauges scattered in an area situated close to the NW Mediterranean coast. Power-law distributions emerge ...
Testing Cayley graph densities
We present a computer-assisted analysis of combinatorial properties of the Cayley graphs of certain finitely generated groups: Given a group with a finite set of generators, we study the density of the corresponding Cayley ...
Catalan's intervals and realizers of triangulations
The Stanley lattice, Tamari lattice and Kreweras lattice are three remarkable orders defined on the set of Catalan objects of a given size. These lattices are ordered by inclusion: the Stanley lattice is an extension of ...
The role of fixed delays in neuronal rate models
Fixed delays in neuronal interactions arise through synaptic and dendritic processing. Previous work has shown that such delays, which play an important role in shaping the dynamics of networks of large numbers of spiking ...
Reduction, Linearization and stability of relative equilibria for mechanical systems on riemannian manifolds
Consider a Riemannian manifold equipped with an infinitesimal isometry. For this setup, a unified treatment is provided, solely in the language of Riemannian geometry, of techniques in reduction, linearization, and stability ...
Exogenous Amyloid Sequences : Their Role in Amyloid-Beta Heterotypic Aggregation
Protein aggregation is a complex process influenced by environmental conditions and interactions between multiple molecules, including those of exogenous origin. Although in vitro simulations of aggregation are crucial for ...
