An agglomeration-based massively parallel non-overlapping additive Schwarz preconditioner for high-order discontinuous Galerkin methods on polytopic grids

In this article we design and analyze a class of two-level non-overlapping additive Schwarz preconditioners for the solution of the linear system of equations stemming from discontinuous Galerkin discretizations of second-order elliptic partial differential equations on polytopic meshes. The precond...

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Bibliographic Details
Main Authors: Antonietti, P, Houston, P, Pennesi, G, Süli, E
Format: Journal article
Language:English
Published: American Mathematical Society 2020