Doctorat en Matemàtica Aplicada
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Articles de revista [37]
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Embeddability of Kimura 3ST Markov matrices
(2018-05-14)
Article
Open AccessIn this note, we characterize the embeddability of generic Kimura 3ST Markov matrices in terms of their eigenvalues. As a consequence, we are able to compute the volume of such matrices relative to the volume of all Markov ... -
Local bisection for conformal refinement of unstructured 4D simplicial meshes
(Springer, 2018)
Conference report
Open AccessWe present a conformal bisection procedure for local refinement of 4D unstructured simplicial meshes with bounded minimum shape quality. Specifically, we propose a recursive refine to conformity procedure in two stages, ... -
Defining a stretching and alignment aware quality measure for linear and curved 2D meshes
(Springer, 2018)
Conference report
Open AccessWe define a regularized shape distortion (quality) measure for curved high-order 2D elements on a Riemannian plane. To this end, we measure the deviation of a given 2D element, straight-sided or curved, from the stretching ... -
Universality of Euler flows and flexibility of Reeb embeddings
(2019-11-05)
External research report
Open AccessThe dynamics of an inviscid and incompressible fluid flow on a Riemannian manifold is governed by the Euler equations. Recently, Tao launched a programme to address the global existence problem for the Euler and Navier ... -
The uncoupling limit of identical Hopf bifurcations with an application to perceptual bistability
(2019-12-01)
Article
Open AccessWe study the dynamics arising when two identical oscillators are coupled near a Hopfbifurcation where we assume a parameter uncouples the system at = 0. Using anormal form forN= 2 identical systems undergoing Hopf bifurcation, ... -
Some properties for bisemivalues on bicooperative games
(2020-02-29)
Article
Restricted access - publisher's policyIn this work, we focus on bicooperative games, a variation of the classic cooperative games, and investigate the conditions for the coefficients of the bisemivalues—a generalization of semivalues for cooperative games—necessary ... -
Fixed subgroups and computation of auto-fixed closures in free-abelian times free groups
(2020-04-01)
Article
Open AccessThe classical result by Dyer–Scott about fixed subgroups of finite order automor-phisms of Fnbeing free factors of Fn is no longer true inZm×Fn. Within this more generalcontext, we prove a relaxed version in the spirit of ... -
Vibration-based detection and classification of structural changes using principal component analysis and t-distributed stochastic neighbor embedding
(Wiley, 2020-03-05)
Article
Open AccessThis paper describes a structural health monitoring strategy to detect and classify structural changes in structures that can be equipped with sensors. The proposed approach is based on the t-distributed stochastic neighbor ... -
Sufficient conditions for a digraph to admit a (1,=l)-identifying code
(2019)
Article
Open AccessA (1, = `)-identifying code in a digraph D is a subset C of vertices of D such that all distinct subsets of vertices of cardinality at most ` have distinct closed in-neighbourhoods within C. In this paper, we give some ... -
An immersed boundary hierarchical B-spline method for flexoelectricity
(2019-09-01)
Article
Restricted access - publisher's policyThis paper develops a computational framework with unfitted meshes to solve linear piezoelectricity and flexoelectricity electromechanical boundary value problems including strain gradient elasticity at infinitesimal ... -
Adaptive refinement for phase-field models of brittle fracture based on Nitsche's method
(Springer, 2020-03-18)
Article
Restricted access - publisher's policyA new adaptive refinement strategy for phase-field models of brittle fracture is proposed. The approach provides a computationally efficient solution to the high demand in spatial resolution of phase-field models. The ... -
Monomial generators of complete planar ideals
(2020-01-01)
Article
Restricted access - publisher's policyWe provide an algorithm that computes a set of generators for any complete ideal in a smooth complex surface. More interestingly, these generators admit a presentation as monomials in a set of maximal contact elements ...
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