Hi, What is the quickest way to diagonalize symmetric matrix 248x248 with integral entries. I run Eigenvectors(Rationals, m) but it run long time on my PC. The matrix is the Gram matrix of Thompson Smith lattice in dimension 248. See page: http://www.math.rwth-aachen.de/~Gabriele.Nebe/LATTICES/TH.html
I would like to obtain the lattice generators or alternatively orthogonal representation of Thompson sporadic group. Regards, Marek _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
