Results 41 to 50 of about 82,328 (193)
, 2023 La presente memoria está dedicada al estudio numérico de las ecuaciones diferenciales, tanto desde el enfoque teórico como desde el computacional, complementando las competencias adquiridas tanto en el grado en Matemáticas como en el grado en ...
Casado Sánchez, Ana
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Mathematical Methods in the Applied Sciences, Volume 48, Issue 8, Page 9207-9224, 30 May 2025.ABSTRACT We consider a Maxwell system on ℝ3$$ {\mathbb{R}}^3 $$ with highly oscillating periodic coefficients. It is known that the solutions converge in the weak‐ ∗$$ \ast $$ topology of L∞(0,T;L2(ℝ3))$$ {L}^{\infty}\left(0,T;\kern0.3em {L}^2\left({\mathbb{R}}^3\right)\right) $$ to the solution of a similar problem with constant coefficients given as ...
Juan Casado‐Díaz +2 more
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Dirichlet problems with skew-symmetric drift terms
Comptes Rendus. MathématiqueWe prove existence of finite energy solutions for a linear Dirichlet problem with a drift and a convection term of the form $A\,E(x)\nabla u + \mathrm{div}(u\,E(x))$, with $A > 0$ and $E$ in $(L^{r}(\Omega ))^{N}$.
Boccardo, Lucio +2 more
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Chemostat models with Monod and Haldane consumption functions and random environmental fluctuations
Mathematical Methods in the Applied Sciences, Volume 48, Issue 7, Page 7412-7431, 15 May 2025.In this paper, we study the asymptotic dynamics of two chemostat models with random environmental fluctuations modeled by means of real noise, where different consumption functions for the consumer species (Monod and Haldane) are taking into account. For each model, our main goal is to investigate the existence of deterministic attracting sets.
Tomás Caraballo +2 more
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Mathematical Modelling and AnalysisThis study investigates the steady-state Darcy-Brinkman flow within a thin, saturated porous domain, focusing on the effects of viscous dissipation and non-homogeneous boundary condition for the temperature.
Igor Pažanin, Francisco J. Suárez-Grau
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Stochastic COVID‐19 epidemic model incorporating asymptomatic and isolated compartments
Mathematical Methods in the Applied Sciences, Volume 48, Issue 7, Page 8400-8422, 15 May 2025.This study delves into the intricate dynamics of the COVID‐19 epidemic by extending a deterministic compartmental model incorporating asymptomatic, quarantined and isolated compartments, with a stochastic model capturing the natural randomness of the processes.
Tomás Caraballo +5 more
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MathematicsThere was an error in the original publication [...]
Inmaculada Gayte Delgado +1 more
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Aprendizaje de las ecuaciones diferenciales desde un enfoque cualitativo
Praxis & Saber, 2020 Este proyecto investigativo diseñó y validó un modelo didáctico para el aprendizaje de ecuaciones diferenciales, con énfasis en los métodos cualitativos y basados en la concepción cuasi empírica de las matemáticas. Se utilizó una metodología cualitativa,
Edinson Caicedo, Gerardo Antonio Chacón
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The assembly and dynamics of ecological communities in an ever‐changing world
Ecological Monographs, Volume 94, Issue 4, November 2024.Abstract Alternative perspectives on the maintenance of biodiversity and the assembly of ecological communities suggest that both processes cannot be investigated simultaneously. In this concept and synthesis, we challenge this view by presenting major theoretical advances in structural stability and permanence theory.
Oscar Godoy +3 more
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, 1965 Es claro que dada una función indefinidamente diferenciable f(x1, x2, ...xn) puede existir un operador diferencial P(D) y una funcion u que sea indefinidamente diferenciable en x1, ....xj (j and lt; n) y no lo sea en x j+1 ...
openaire +3 more sources