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@article{IM_1986__83_143320, author = {Robert J. Zimmer}, title = {On the automorphism group of a compact {Lorentz} manifold and other geometric.}, journal = {Inventiones mathematicae}, pages = {411--424}, publisher = {mathdoc}, volume = {83}, year = {1986}, zbl = {0591.53026}, url = {http://geodesic.mathdoc.fr/item/IM_1986__83_143320/} }
Robert J. Zimmer. On the automorphism group of a compact Lorentz manifold and other geometric.. Inventiones mathematicae, Tome 83 (1986), pp. 411-424. http://geodesic.mathdoc.fr/item/IM_1986__83_143320/