Articles de revista: Enviaments recents
Ara es mostren els items 13-24 de 415
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EMtree for phylogenetic topology reconstruction on nonhomogeneous data
(2014-06-17)
Article
Accés obert -
Low degree equations for phylogenetic group-based models
(2015)
Article
Accés obertMotivated by phylogenetics, our aim is to obtain a system of low degree equations that define a phylogenetic variety on an open set containing the biologically meaningful points. In this paper we consider phylogenetic ... -
Layer solutions for the fractional Laplacian on hyperbolic space: existence, uniqueness and qualitative properties
(2014-12-01)
Article
Accés restringit per política de l'editorialWe investigate the equation; (-Delta(Hn))(gamma) w = f(w) in H-n,; where (-Delta(Hn))(gamma) corresponds to the fractional Laplacian on hyperbolic space for gamma is an element of(0, 1) and f is a smooth nonlinearity that ... -
Sufficient conditions for controllability and observability of serial and parallel concatenated linear systems
(2014-11-30)
Article
Accés obertThis paper deals with the sufficient conditions for controllability and observability characters of finitedimensional linear continuous-time-invariant systems of serial and parallel concatenated systems. The obtained ... -
Addendum to “Frobenius and Cartier algebras of Stanley–Reisner rings” [J. Algebra 358 (2012) 162–177]
(2014-09)
Article
Accés restringit per política de l'editorialWe give a purely combinatorial characterization of complete Stanley–Reisner rings having a principally generated (equivalently, finitely generated) Cartier algebra. -
A new approach to the vakonomic mechanics
(2014-11-01)
Article
Accés restringit per política de l'editorialThe aim of this paper was to show that the Lagrange-d'Alembert and its equivalent the Gauss and Appel principle are not the only way to deduce the equations of motion of the nonholonomic systems. Instead of them we consider ... -
Zero, minimum and maximum relative radial acceleration for planar formation flight dynamics near triangular libration points in the Earth-Moon system
(2014-11-01)
Article
Accés restringit per política de l'editorialAssume a constellation of satellites is flying near a given nominal trajectory around L-4 or L-5 in the Earth-Moon system in such a way that there is some freedom in the selection of the geometry of the constellation. We ... -
An extension problem for the CR fractional Laplacian
(2015-01-01)
Article
Accés obertWe show that the conformally invariant fractional powers of the sub-Laplacian on the Heisenberg group are given in terms of the scattering operator for an extension problem to the Siegel upper halfspace. Remarkably, this ... -
Functional output-controllability of time-invariant singular linear systems
(Springer, 2014-10-11)
Article
Accés obertIn the space of finite-dimensional singular linear continuous-time-invariant systems described in the form \begin{equation}\label{eq1}\left . \begin{array}{rl} E \dot x(t)&= Ax(t)+Bu(t)\\ y(t)&=Cx(t)\end{array}{\kern ... -
A PDE approach of inflammatory phase dynamics in diabetic wounds.
(2014)
Article
Accés obertThe objective of the present paper is the modeling and analysis of the dynamics of macrophages and certain growth factors in the in ammatory phase, the rst one of the wound healing process. It is the phase where there ... -
Modelling of a clamped-pinned pipeline conveying fluid for vibrational stability analysis
(2014-08)
Article
Accés obertRecent developments in materials and cost reduction have led the study of the vibrational stability of pipelines conveying fluid to be an important issue. Nowadays, this analysis is done both by means of simulation with ... -
Godement resolutions and sheaf homotopy theory
(2014-09)
Article
Accés restringit per política de l'editorialThe Godement cosimplicial resolution is available for a wide range of categories of sheaves. In this paper we investigate under which conditions of the Grothendieck site and the category of coefficients it can be used to ...