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Monotonicity in RT0 and PWCF methods on triangular and tetrahedral meshes


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Abstract

In this paper we derive the monotonicity conditions for condensed-algebraic systems obtained by the discretization of the Poisson’s problem by the classical lowest order Raviart–Thomas (RT0) and the piece-wise constant fluxes (PWCF) MFE methods on triangular and tetrahedral meshes. We also establish the correspondence between the condensed system matrices resulting from application of these two methods.

About the authors

E. Kikinzon

Computational Earth Science, EES-16

Author for correspondence.
Email: kikinzon@lanl.gov
United States, Los Alamos, NM, 87545

Y. Kuznetsov

Department of Mathematics

Email: kikinzon@lanl.gov
United States, 641 PGH, Houston, TX, 77204

Z. Liu

Department of Mathematics

Email: kikinzon@lanl.gov
United States, 641 PGH, Houston, TX, 77204

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