RT Book, Section T1 Entropy solutions and renormalized entropy solutions for degenerate problems. A1 Carrillo Menéndez, José AB This conference contribution gives a brief introduction to the resolution of some degenerate problems with the L1 theory in open bounded sets. The first part of the workdescribes well known concepts related to entropy solutions of Kruzhkov and results ensuring existence for data and initial conditions in L1. In the second part, the authorintroduces the concept of renormalized entropy solutions and gives an existence and uniqueness result for such solution when data and initial condition are in L1. The workends with a short history of renormalized solutions. PB Universidad de Salamanca. Departamento de Matemática Aplicada SN 84-699-6144-6 YR 2001 FD 2001 LK https://hdl.handle.net/20.500.14352/60561 UL https://hdl.handle.net/20.500.14352/60561 NO Congreso de Matemática Aplicada (7º. 2001. Salamanca) DS Docta Complutense RD 6 may 2024