Results 51 to 60 of about 2,156,632 (132)
Publicaciones e Investigación, 2007 The software Numericals is a tutorial for support to the learning of the techniques used for the Numerical Analysis mediates the programming of the main numerical methods, for the solution of engineering problems.
Jesús Alfonso Torres Ortega
doaj +1 more source
, 2018 El analisis de infiltracion de agua en suelos es indispensable para comprender como la variacion de humedad del suelo ocurre en situaciones reales y cual es su influencia en sus propiedades ingenieriles.
Erasmo Carnero Carnero +1 more
semanticscholar +1 more source
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
wiley +1 more source
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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Alan Turing y los orígenes de la eliminación gaussiana moderna
Arbor: Ciencia, Pensamiento y Cultura, 2013 La resolución de sistemas de ecuaciones lineales es sin duda el problema más importante en Matemática Aplicada. Es importante en sí mismo y también porque es un paso intermedio en la resolución de muchos otros problemas de gran relevancia. La eliminación
Froilán M. Dopico
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, 2016 En este trabajo se presentan simulaciones del proceso de infiltracion de agua en suelos parcialmente saturados en una y en dos dimensiones, haciendo uso de un metodo acoplado infiltracion-deformacion.
Willideman Tobón Sánchez +2 more
semanticscholar +1 more source
A New Method for the Exact Controllability of Linear Parabolic Equations
MathematicsThis 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
Estudio experimental y análisis numérico de la desecación en suelos arcillosos
, 2015 This thesis focuses on the experimental and numerical study of the desiccation processes of low-plasticity clayey soils that usually result in shrinkage and often in cracking.
Hu Levatti
semanticscholar +1 more source
Optimal Control of Insect Populations
Mathematics, 2021 We consider some optimal control problems for systems governed by linear parabolic PDEs with local controls that can move along the domain region Ω of the plane. We prove the existence of optimal paths and also deduce the first order necessary optimality
Anderson L. Albuquerque de Araujo +4 more
doaj +1 more source
, 2016 El Museo de la Insurgencia, declarado edificio historico y patrimonial y localizado en Pabellon de Hidalgo, estado de Aguascalientes, Mexico central, esta siendo severamente danado por una falla superficial activa.
Martín Hernández Marín +5 more
semanticscholar +1 more source