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Dinámica de competencia

open access: yesCiencia y Sociedad, 1988
Este texto analiza la importancia de la técnica de las ecuaciones diferenciales y sus planos de fases para expresar las conductas de un sistema, claro esto no sería un modelo exacto pero puede mostrarnos cualitativamente el curso de los acontecimientos ...
Amado Reyes
doaj   +1 more source

Las Ecuaciones Diferenciales

open access: yesEducación matemática, 1989
La teoría de las ecuaciones diferenciales es una de las más amplias ramas de la matemática actual, y es también una de las que más se relaciona con las aplicaciones. Al tratar de entender cualquier fenómeno físico entendido éste como un evento bajo estudio que presente la variación de una variable respecto a otra u otras la mente crea una idealización ...
openaire   +2 more sources

Aplicaciones computacionales de las ecuaciones diferenciales estocásticas

open access: yesIndustrial Data, 2006
Los mètodos numèricos son herramientas efectivas para resolver los problemas de ingenierìa o ciencias, que utilizan ecuaciones diferenciales determinìsticas. Asì tenemos los mètodos de Euler, Heun y los esquemas de Runge-Kutta.
Eduardo Raffo Lecca   +1 more
doaj   +1 more source

A New Method for the Exact Controllability of Linear Parabolic Equations

open access: yesMathematics
This work solves the exact controllability to zero in the final time for a linear parabolic problem when the control only acts in a part of the spatial domain. Specifically, it is proved, by compactness arguments, the existence of a partially distributed
Inmaculada Gayte Delgado   +1 more
doaj   +1 more source

Aprendizaje de las ecuaciones diferenciales desde un enfoque cualitativo

open access: yesPraxis & 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
doaj   +1 more source

Dirichlet problems with skew-symmetric drift terms

open access: yesComptes Rendus. Mathématique
We 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
doaj   +1 more source

A Strong Approximation in L2 for the Solutions of the Maxwell System With Highly Oscillating Periodic Coefficients

open access: yesMathematical 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
wiley   +1 more source

Chemostat models with Monod and Haldane consumption functions and random environmental fluctuations

open access: yesMathematical 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
wiley   +1 more source

Correction: Gayte Delgado, I.; Marín-Gayte, I. A New Method for the Exact Controllability of Linear Parabolic Equations. Mathematics 2025, 13, 344

open access: yesMathematics
There was an error in the original publication [...]
Inmaculada Gayte Delgado   +1 more
doaj   +1 more source

Stochastic COVID‐19 epidemic model incorporating asymptomatic and isolated compartments

open access: yesMathematical 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
wiley   +1 more source

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