"Failures of density functional theory for strongly correlated systems using density-matrix renormalization group" Kieron Burke Depts of Physics and Chemistry University of California, Irvine, U.S.A. In this talk, I will survey recent work in collaboration with Steve White in which we use DMRG to find the exact exchange-correlation functional of DFT, and show what happens as correlations become strong, with emphasis on approaching the thermodynamic limit. Tue 12th November 11am, TCM Seminar Room, Cavendish Laboratory