Scalar conservation law in a bounded domain with strong source at boundary.

Autor: Xu, Lu
Zdroj: NoDEA: Nonlinear Differential Equations & Applications; Jul2024, Vol. 31 Issue 4, p1-27, 27p
Abstrakt: We consider a scalar conservation law with source in a bounded open interval Ω ⊆ R . The equation arises from the macroscopic evolution of an interacting particle system. The source term models an external effort driving the solution to a given function ϱ with an intensity function V : Ω → R + that grows to infinity at ∂ Ω . We define the entropy solution u ∈ L ∞ and prove the uniqueness. When V is integrable, u satisfies the boundary conditions introduced by F. Otto (C. R. Acad. Sci. Paris, 322(1):729–734, 1996), which allows the solution to attain values at ∂ Ω different from the given boundary data. When the integral of V blows up, u satisfies an energy estimate and presents essential continuity at ∂ Ω in a weak sense. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index