About
25
Publications
1,732
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
407
Citations
Publications
Publications (25)
En el presente trabajo de investigación en educación, se hace un recorrido sobre algunas de las técnicas que se utilizan en distintas asignaturas con el mismo carácter cuantitativo y temario, pero diferente desarrollo metodológico en las clases. Para ello, se realiza previamente una labor de contextualización y se toma una muestra de variables de v...
En este trabajo se analiza la situación postCOVID-19 de la enseñanza superior, planteándose el objetivo de estudiar si la vuelta a la normalidad académica tras la pandemia de COVID-19 trae consigo la recuperación de los resultados del alumnado. Para ello, se analiza la Titulación de Administración y Dirección de Empresas impartida por la Facultad d...
La pandemia de la COVID 19 ha afectado de forma notable a las Universidades, provocando y acelerando cambios que afectan a todos los ámbitos. Entre estas modificaciones, la docencia ha tenido que realizar importantes variaciones metodológicas, asumiendo una mayor presencia tecnológica. En este marco, el objetivo del estudio es analizar el impacto p...
In this paper we consider a non-autonomous Navier-Stokes-Voigt model including a variety of delay terms in a unified formulation. Firstly, we prove the existence and uniqueness of solutions by using a Galerkin scheme. Next, we prove the existence and eventual uniqueness of stationary solutions, as well as their exponential stability by using three...
En este trabajo queremos mostrar una serie de herramientas que nos sirvan para comprobar la adquisición, por parte del alumnado de Estadística Empresarial I, de ciertas competencias, de una forma sencilla pero a la vez rigurosa.
Del 16 al 18 de julio de este año 2018, se ha llevado a cabo una nueva edición, la tercera, de las jornadas eXIDO: Encuentro de profesores e investigadores en el campo de la enseñanza e innovación educativa en matemáticas tanto a nivel universitario como de Enseñanza Secundaria.
Our aim in this work is the study of the existence and uniqueness of solutions for a non-classical and non-autonomous diffusion equation containing infinite delay terms. We also analyze the asymptotic behaviour of the system in the pullback sense and, under suitable additional conditions, we obtain global exponential decay of the solutions of the e...
We first study the well-posedness of a nonclassical and nonautonomous diffusion equation containing unbounded delays. Then, we prove the existence and uniqueness of local solutions, and finally we prove the global in time existence of solutions as well as the continuous dependence on the initial values.
In this paper, a nonclassical nonautonomous diffusion equation with delay is analyzed. First, the well-posedness and the existence of a local solution is proved by using a fixed point theorem. Then, the existence of solutions defined globally in future is ensured. The asymptotic behavior of solutions is analyzed within the framework of pullback att...
A nonclassical nonautonomous diffusion equation with delay is analyzed. First, we prove the existence and uniqueness of solutions by using the Galerkin approximations and the energy method. Next, we prove the existence and eventual uniqueness of stationary solutions, as well as their exponential stability. We emphasize that the assumptions imposed...
Existence, uniqueness, and continuity properties of solutions for a globally modified version of Navier–Stokes equations with finite delay terms within a locally Lipschitz operator are established. Moreover, we also analyze the stationary problem, and, under suitable assumptions, we prove that there exists a unique stationary solution, which is glo...
RESUMEN Durante el presente curso 2009/2010 la Universidad Pablo de Olavide (UPO), de Sevilla, ha puesto en marcha el nuevo mapa de titulaciones adaptado al Espacio Europeo de Educación Superior (EEES), el cual está compuesto por 16 grados y 6 dobles grados. Hasta llegar a este punto la UPO trabajó duro durante más de 6 años en la adaptación de su...
Existence and uniqueness of solutions for a stochastic version of the 3D-Lagrangian averaged Navier–Stokes (LANS-α) equation in a bounded domain and containing some hereditary characteristics are proved.
We prove that under suitable assumptions, from a sequence of solutions of globally modified Navier-Stokes equations with delays we can extract a subsequence which converges in an adequate sense to a weak solution of a three-dimensional Navier-Stokes equation with delays. An additional case with a family of different delays involved in the approxima...
We establish the existence of pullback attractors for the dynamical system associated to a globally modified model of the Navier-Stokes equations containing delay operators with infinite delay in a suitable weighted space. Actually, we are able to prove the existence of attractors in different classes of universes, one is the classical of fixed bou...
Resumen En esta comunicación demostramos que, bajo ciertas hiótesis, de una sucesión de soluciones del modelo Navier-Stokes Globalmente Modificado con retardo podemos extraer una subsucesión que converge en un sentido adecuado a una solución débil del correspondiente modelo de Navier-Stokes en dimensión tres. También se analiza el caso en el que ap...
We prove the existence and uniqueness of strong solutions of a three-dimensional system of globally modified Navier–Stokes equations with delay in the locally Lipschitz case. The asymptotic behavior of solutions, and the existence of pullback attractor are also analyzed.
Existence and uniqueness of solution for a globally modified version of Navier-Stokes equations containing infinite delay terms are established. Moreover, we also analyze the stationary problem and, under suitable addi- tional conditions, we obtain global exponential decay of the solutions of the evolutionary problem to the stationary solution.
We first study the existence and uniqueness of strong solutions of a three dimensional system of globally modified Navier-Stokes equations with finite delay in the locally Lipschitz case. The asymptotic behaviour of solutions, and the existence of pullback attractor are also analyzed.
We obtain some results on the existence and uniqueness, and exponential stability of solutions for the three-dimensional α-Navier–Stokes model with delays, when the forcing term containing the delay is sub-linear and locally Lipschitz continuous.
We prove the existence and exponential stability of the stationary solutions for a three-dimensional α-Navier–Stokes model with delays. Instead of working directly with the model, we establish the results for a general abstract delay model, and then we apply them to our particular situation. We use two techniques in the stability analysis: the Lyap...
We analyze the asymptotic behaviour of a 3D Lagrangian averaged Navier-Stokes α-model (3D LANS-α) with delays. In fact, we apply the theory of pullback attractors to ensure the existence of a pullback at tract or, and at the same time, we also prove the existence of a uniform (forward) attractor in the sense of Chepyzhov and Vishik. Instead of work...
The long-time behaviour of a stochastic 3D LANS-α model on a bounded domain is analysed. First, we reformulate the model as
an abstract problem. Next, we establish sufficient conditions ensuring the existence of stationary (steady state) solutions
of this abstract nonlinear stochastic evolution
equation, and study the stability properties of the mo...
In this paper, we present some results concerning existence and uniqueness of solutions for a rather general class of nonlinear backward stochastic partial differential equations. These results are illustrated with two examples.
