00982nas a2200121   4500008004100000245006900041210006900110260001800179520057400197100002800771700002500799856003600824       2005                        en  d00aConservation laws with time dependent discontinuous coefficients0 aConservation laws with time dependent discontinuous coefficients  bSISSA Library3 aWe consider scalar conservation laws where the flux function depends discontinuously on both the spatial and temporal location. Our main results are the existence and well-posedness of an entropy solution to the Cauchy problem. The existence is established by showing that a sequence of front tracking approximations is compact in L1, and that the limits are entropy solutions. Then, using the definition of an entropy solution taken form [11], we show that the solution operator is L1 contractive. These results generalize the corresponding results from [16] and [11].1 aCoclite, Giuseppe Maria1 aRisebro, Nils Henrik  uhttp://hdl.handle.net/1963/1666