Domínguez Baguena, Víctor

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https://academica-e.unavarra.es/handle/2454/48906

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Domínguez Baguena

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Víctor

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Estadística, Informática y Matemáticas

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InaMat2. Instituto de Investigación en Materiales Avanzados y Matemáticas

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0000-0002-6095-619X

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88591

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2552

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Author: Sánchez Vizuet, Tonatiuh × Subject: Time domain boundary integral equations ×

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    PublicationOpen Access
    A fully discrete Calderón calculus for the two-dimensional elastic wave equation
    (Elsevier, 2015) Domínguez Baguena, Víctor; Sánchez Vizuet, Tonatiuh; Sayas, Francisco Javier; Ingeniería Matemática e Informática; Matematika eta Informatika Ingeniaritza
    In this paper we present a full discretization of the layer potentials and boundary integral operators for the elastic wave equation on a parametrizable smooth closed curve in the plane. The method can be understood as a non-conforming Petrov–Galerkin discretization, with a very precise choice of testing functions by symmetrically combining elements on two staggered grids, and using a look-around quadrature formula. Unlike in the acoustic counterpart of this work, the kernel of the elastic double layer operator includes a periodic Hilbert transform that requires a particular choice of the mixing parameters. We give mathematical justification of this fact. Finally, we test the method on some frequency domain and time domain problems, and demonstrate its applicability on smooth open arcs.