Bögelein Verena, Dietrich Nicolas, Vestberg Matias
Fachbereich Mathematik, Universität Salzburg, Hellbrunner Str. 34, 5020 Salzburg, Austria.
Department of Mathematics and Systems Analysis, Aalto University, P.O. Box 11100, 00076 Espoo, Finland.
J Evol Equ. 2021;21(1):845-889. doi: 10.1007/s00028-020-00604-y. Epub 2020 Jul 25.
In this article, we establish the existence of weak solutions to the shallow medium equation. We proceed by an approximation argument. First, we truncate the coefficients of the equation from above and below. Then, we prove convergence of the solutions of the truncated problem to a solution to the original equation.
在本文中,我们证明了浅介质方程弱解的存在性。我们通过逼近论证来进行。首先,我们从上下界截断方程的系数。然后,我们证明截断问题的解收敛到原方程的一个解。