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math.AP2024
Riemann problem for a nonsymmetric Keyfitz-Kranzer and pressureless gas systems with a time-dependent Coulomb-like friction term
Richard De la cruz, Wladimir Neves
In this paper, we study the Riemann solutions for two systems: the nonsymmetric Keyfitz-Kranzer system and the pressureless system, both of which have a time-dependent Coulomb-like…
math.AP2024
On a class of nonautonomous quasilinear systems with general time-gradually-degenerate damping
Richard De la cruz, Wladimir Neves
In this paper, we study two systems with a time-variable coefficient and general time-gradually-degenerate damping. More explicitly, we construct the Riemann solutions to the time-…