Publicación: A CONVERGENT FINITE VOLUME METHOD FOR A MODEL OF INDIRECTLY TRANSMITTED DISEASES WITH NONLOCAL CROSS-DIFFUSION
Fecha
2015
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COMPUTERS & MATHEMATICS WITH APPLICATIONS
Resumen
IN THIS PAPER, WE ARE CONCERNED WITH A MODEL OF THE INDIRECT TRANSMISSION OF AN EPIDEMIC DISEASE BETWEEN TWO SPATIALLY DISTRIBUTED HOST POPULATIONS HAVING NON-COINCIDENT SPATIAL DOMAINS WITH NONLOCAL AND CROSS-DIFFUSION, THE EPIDEMIC DISEASE TRANSMISSION OCCURRING THROUGH A CONTAMINATED ENVIRONMENT. THE MOBILITY OF EACH CLASS IS ASSUMED TO BE INFLUENCED BY THE GRADIENT OF THE OTHER CLASSES. WE ADDRESS THE QUESTIONS OF EXISTENCE OF WEAK SOLUTIONS AND EXISTENCE AND UNIQUENESS OF CLASSICAL SOLUTION BY USING, RESPECTIVELY, A REGULARIZATION METHOD AND AN INTERPOLATION RESULT BETWEEN BANACH SPACES. MOREOVER, WE PROPOSE A FINITE VOLUME SCHEME AND PROVED THE WELL-POSEDNESS, NONNEGATIVITY AND CONVERGENCE OF THE DISCRETE SOLUTION. THE CONVERGENCE PROOF IS BASED ON DERIVING A SERIES OF A PRIORI ESTIMATES AND BY USING A GENERAL LP COMPACTNESS CRITERION. FINALLY, THE NUMERICAL SCHEME IS ILLUSTRATED BY SOME EXAMPLES.
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WEAK SOLUTION, REACTION-DIFFUSION SYSTEM, NONLOCAL CROSS-DIFFUSION, FINITE VOLUME SCHEME, DISCRETE COMPACTNESS, CLASSICAL SOLUTION
