Person:
Tapiador Fernández, Bárbara

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First Name
Bárbara
Last Name
Tapiador Fernández
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Matemáticas
Department
Area
Matemática Aplicada
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Publication

Nonreflecting boundary conditions for discrete waves

2010, Carpio, Ana, Tapiador Fernández, Bárbara

We introduce a new class of nonreflecting boundary conditions for lattice models, which minimizes reflections at artificial boundaries. Exact integrodifferential boundary conditions for finite chains and half-spaces are obtained by means of Green's functions for initial value problems. Truncating the resulting integrals in time, we obtain absorbing boundary conditions. Numerical tests illustrate the ability of these conditions to suppress reflections.