Mathematics – Analysis of PDEs
Scientific paper
2008-12-21
Mathematics
Analysis of PDEs
36 pages
Scientific paper
We consider nonclassical entropy solutions to scalar conservation laws with concave-convex flux functions, whose set of left- and right-hand admissible states across undercompressive shocks is selected by a kinetic function \phi. We introduce a new definition for the (generalized) strength of classical and nonclassical shocks, allowing us to propose a generalized notion of total variation functional. Relying only upon the natural assumption that the composite function \phi o \phi is uniformly contracting, we prove that the generalized total variation of front-tracking approximations is non-increasing in time, and we conclude with the existence of nonclassical solutions to the initial-value problem. We also propose two definitions of generalized interaction potentials which are adapted to handle nonclassical entropy solutions and we investigate their monotonicity properties. In particular, we exhibit an interaction functional which is globally non-increasing along a splitting-merging interaction pattern.
Laforest Marc
LeFloch Philippe G.
No associations
LandOfFree
Diminishing functionals for nonclassical entropy solutions selected by kinetic relations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Diminishing functionals for nonclassical entropy solutions selected by kinetic relations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diminishing functionals for nonclassical entropy solutions selected by kinetic relations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-593027