On topological Tits buildings and their classification . Manifolds of nonpositive curvature and their buildings . Equations defining Schubert varieties and Frobenius splitting of diagonals . Markov partitions and K[2] . Transformation de Fourier constantes d'équations fonctionnelles et conjecture de Weil - Burns, Keith; Spatzier, Ralf; Ramanathan, A; Wagoner, J. B; Laumon, Gérard; Institut des hautes études scientifiques (France) (Publications mathématiques, 1987)