We discuss several techniques for proving compactness of sequences of approximate solutions to discretized evolution PDEs. While the well-known Aubin-Simon kind functional-analytic techniques were recently generalized to the discrete setting by Gallouët and Latché [15], here we discuss direct techniques for estimating the time translates of approximate solutions in the space L 1. One important result is the Kruzhkov time compactness lemma. Further, we describe a specific technique that relies upon the order-preservation property. Motivation comes from studying convergence of finite volume discretizations for various classes of nonlinear degenerate parabolic equations. These and other applications are briefly described. © Springer-Verlag Berlin Heidelberg 2011.
CITATION STYLE
Andreianov, B. (2011). Time Compactness Tools for Discretized Evolution Equations and Applications to Degenerate Parabolic PDEs. Springer Proceedings in Mathematics, 4, 21–29. https://doi.org/10.1007/978-3-642-20671-9_3
Mendeley helps you to discover research relevant for your work.