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University of the Basque Country (UPV/EHU), Department of Mathematics, Spain, Basque Center for Applied Mathematics (BCAM), Bilbao, Spain, Ikerbasque, Basque Foundation for Science, Bilbao, Spain
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PINNs can now efficiently solve highly oscillatory wave equations in heterogeneous media, thanks to a Green's function-based integral formulation that cuts computation by 10x and avoids absorbing boundary layers.