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How does the partition of unity influence SORAS preconditioner?

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Abstract

We investigate numerically the influence of the choice of the partition of unity on the convergence of the Symmetrized Optimized Restricted Additive Schwarz (SORAS) preconditioner for the heterogeneous reaction-convection-diffusion equation.
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hal-03882577 , version 1 (02-12-2022)

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Marcella Bonazzoli, Xavier Claeys, Frédéric Nataf, Pierre-Henri Tournier. How does the partition of unity influence SORAS preconditioner?. 2022. ⟨hal-03882577⟩
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