{ "id": "2309.04096", "version": "v1", "published": "2023-09-08T03:17:28.000Z", "updated": "2023-09-08T03:17:28.000Z", "title": "Kinetic description of scalar conservation laws with Markovian data", "authors": [ "Fraydoun Rezakhanlou" ], "categories": [ "math.PR", "math.AP" ], "abstract": "We derive a kinetic equation to describe the statistical structure of solutions $\\rho$ to scalar conservation laws $\\rho_t=H(x,t,\\rho )_x$, with certain Markov initial conditions. When the Hamiltonian function is convex and increasing in $\\rho$, we show that the solution $\\rho(x,t)$ is a Markov process in $x$ (respectively $t$) with $t$ (respectively $x$) fixed. Two classes of Markov conditions are considered in this article. In the first class, the initial data is characterize by a drift $b$ which satisfies a linear PDE, and a jump density $f$ which satisfies a kinetic equation as time varies. In the second class, the initial data is a concatenation of fundamental solutions that are characterized by a parameter $y$, which is a Markov jump process with a jump density $g$ satisfying a kinetic equation. When $H$ is not increasing in $\\rho$, the restriction of $\\rho$ to a line in $(x,t)$ plane is a Markov process of the same type, provided that the slope of the line satisfies an inequality.", "revisions": [ { "version": "v1", "updated": "2023-09-08T03:17:28.000Z" } ], "analyses": { "keywords": [ "scalar conservation laws", "markovian data", "kinetic description", "kinetic equation", "jump density" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }