2021
DOI: 10.48550/arxiv.2112.04132
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Sparse Representations of Solutions to a class of Random Boundary Value Problems

Abstract: In the present study, we consider sparse representations of solutions to Dirichlet and heat equation problems with random boundary or initial conditions. To analyze the random signals, two types of sparse representations are developed, namely stochastic pre-orthogonal adaptive Fourier decomposition 1 and 2 (SPOAFD1 and SPOAFD2). Due to adaptive parameter selecting of SPOAFDs at each step, we obtain analytical sparse solutions of the SPDE problems with fast convergence.

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