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A nodally bound-preserving finite element method for hyperbolic convection-reaction problems

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arxiv 2501.11042 v1 pith:OSQRFVBD submitted 2025-01-19 math.NA cs.NA

classification math.NAcs.NA
keywords boundsconvection-reactiondiscretehyperbolicnonlinearnumericalphysicalproblems
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In this article, we present a numerical approach to ensure the preservation of physical bounds on the solutions to linear and nonlinear hyperbolic convection-reaction problems at the discrete level. We provide a rigorous framework for error analysis, formulating the discrete problem as a variational inequality and demonstrate optimal convergence rates in a natural norm. We summarise extensive numerical experiments validating the effectiveness of the proposed methods in preserving physical bounds and preventing unphysical oscillations, even in challenging scenarios involving highly nonlinear reaction terms.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. A Positivity-Preserving Finite Element Framework for Accurate Dose Computation in Proton Therapy

    math.NA 2025-06 reject novelty 5.0 of 10

    A positivity-preserving SUPG/variational-inequality finite element scheme is introduced for proton transport dose computation, with claimed error estimates and benchmark tests.

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