3 papers
math.AP2026
Wave interactions and stability of Riemann solutions for a nonautonomous Chromatography-type system of Langmuir isotherm
Richard De la cruz, Rakib Mondal, Wladimir Neves
We investigate the wave interactions and stability of Riemann solutions for a nonautonomous chromatography-type system of Langmuir isotherm with time-dependent damping and flux. Th…
math.AP2026
Existence of Complementary and Variational Weak Solutions to Obstacle Problems for a Quasilinear Wave Equation
João Paulo Dias, Wladimir Neves, José Francisco Rodrigues
We prove the existence of weak solutions for the one obstacle problem associated with a class of quasilinear wave equations in one space dimension, extending previous results obtai…
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…