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Listar por palabra clave "Eigenvalue"

Mostrando ítems 1-9 de 9

A conceptual numerical model to simulate hydraulic head in aquifers that are hydraulically connected to surface water bodies

Pulido Velázquez, David; Sahuquillo Herráiz, Andrés; Andreu Álvarez, Joaquín (Wiley: 12 months, 2011-07)

In this paper, we present a conceptual-numerical model that can be deduced from a calibrated finite difference groundwater-flow model, which provides a parsimonious approach to simulate and analyze hydraulic heads and ...
Accurate estimations of Any Eigenpairs of N-th Order Linear Boundary Value Problems

Almenar, Pedro; Jódar Sánchez, Lucas Antonio (MDPI AG, 2021-11)

[EN] This paper provides a method to bound and calculate any eigenvalues and eigenfunctions of n-th order boundary value problems with sign-regular kernels subject to two-point boundary conditions. The method is based on ...
Approximate Diagonal Integral Representations and Eigenmeasures for Lipschitz Operators on Banach Spaces

Erdogan, Ezgi; Sánchez Pérez, Enrique Alfonso (MDPI AG, 2022-01)

[EN] A new stochastic approach for the approximation of (nonlinear) Lipschitz operators in normed spaces by their eigenvectors is shown. Different ways of providing integral representations for these approximations are ...
Efficient conceptual model for simulating the effect of aquifer heterogeneity on natural groundwater discharge to rivers

Pulido Velázquez, David; Llopis Albert, Carlos; Peña Haro, Salvador; Pulido Velázquez, Manuel Augusto (Elsevier, 2011)

[EN] When linearity can be assumed (linear response of heads to stresses), stream-aquifer flow exchange can be simulated as the drainage of a number of independent linear reservoirs. This conceptual model, which can be ...
Eigenmeasures and stochastic diagonalization of bilinear maps

Erdogan, Ezgi; Sánchez Pérez, Enrique Alfonso (John Wiley & Sons, 2021-04)

[EN] A new stochastic approach is presented to understand general spectral type problems for (not necessarily linear) functions between topological spaces. In order to show its potential applications, we construct the ...
Estimation of the smallest eigenvalue of an nth-order linear boundary value problem

Almenar, Pedro; Jódar Sánchez, Lucas Antonio (John Wiley & Sons, 2021-04)

[EN] This paper describes a recursive procedure to estimate the smallest eigenvalue of an nth-order boundary value problem under a wide set of boundary conditions. The procedure yields lower and upper bounds for that ...
Extension procedures for lattice Lipschitz operators on Euclidean spaces

Arnau-Notari, Andres Roger; Calabuig, J. M.; Erdogan, Ezgi; Sánchez Pérez, Enrique Alfonso (Springer-Verlag, 2023-04)

[EN] We present a new class of Lipschitz operators on Euclidean lattices that we call lattice Lipschitz maps, and we prove that the associated McShane and Whitney formulas provide the same extension result that holds for ...
Fixed point index computations for multivalued mapping and application to the problem of positive eigenvalues in ordered space

Tri, Vo Viet (Universitat Politècnica de València, 2022-04-01)

[EN] In this paper, we present some results on fixed point index calculations for multivalued mappings and apply them to prove the existence of solutions to multivalued equations in ordered space, under flexible conditions ...
The principal eigenvalue of some nth order linear boundary value problems

Almenar, Pedro; Jódar Sánchez, Lucas Antonio (Springer (Biomed Central Ltd.), 2021-10-14)

[EN] The purpose of this paper is to present a procedure for the estimation of the smallest eigenvalues and their associated eigenfunctions of nth order linear boundary value problems with homogeneous boundary conditions ...