Manin’s conjecture for a quartic del Pezzo surface with singularity
The Manin conjecture is established for a split singular del Pezzo surface of degree four, with singularity type .
Mordell-Weil rank of the jacobians of the curves defined by
More cubic surfaces violating the Hasse principle
We generalize L. J. Mordell’s construction of cubic surfaces for which the Hasse principle fails.
Multi-Tensors of Diferential Forms on the Hilbert Modular Variety and on its Subvarieties.