نتایج جستجو برای: oscillatory method
تعداد نتایج: 1647534 فیلتر نتایج به سال:
We develop a multiscale Eulerian–Lagrangian localized adjoint method for transient linear advection– diffusion equations with oscillatory coefficients, which arise in mathematical models for describing flow and transport through heterogeneous porous media, composite material design, and other applications.
Let (un) be a sequence of real numbers and let L be any (C, 1) regular and additive limitable method. In this paper we prove that if the classical control modulo of the oscillatory behavior of (un) belonging to some space of sequences is a Tauberian condition for L , then convergence or (C, 1) convergence of (un) out of L-limitability of (un) is recovered depending on the conditions on the gene...
The boundary integral method is an efficient approach for solving time-harmonic acoustic obstacle scattering problems. The main computational task is the evaluation of an oscillatory boundary integral at each discretization point of the boundary. This paper presents a new fast algorithm for this task in two dimensions. This algorithm is built on top of directional low-rank approximations of the...
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