Volume 6 Number 1 June 2000. Download PDF

• Semisymmetry and Ricci-semisymmetry for hypersurfaces of semi-Riemannian space forms by Filip Defever, Ryszard Deszcz, Dorota Kowalczyk and Leopold Verstraelen. Download PDF

• Pairings and twisted products by S. Caenepeel and Zhengming Jiao. Download PDF

• Note on totally real Pisot-numbers in the successive derived sets of Pisot-numbers by Toufik Zaïmi. Download PDF

• Chaotic dynamics in nonsmooth perturbations of bishadowing systems by P. Diamond, P.E. Kloeden, M.A. Krasnosel’skii and A.V. Pokrovskii. Download PDF

• Blow up in the solutions of an equation describing a transverse motion of a nonhomogeneous string by Salim A. Messaoudi. Download PDF

• The Hasse principle for a class of cubic surfaces by Samir Siksek. Download PDF