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math.NT2004
On Minkowksi's bound for lattice-packings
Roland Bacher
We give a new proof of the Minkowski-Hlawka bound on the existence of dense lattices. The proof is based on an elementary method for constructing dense lattices which is almost eff…
math.NT2003
Symmetric Pascal matrices modulo p
Roland Bacher, Robin Chapman
We study characteristic polynomials of symmetric matrices with entries the binomial coefficients, over finite fields.