Resumen de Cubic polynomials and quadratic forms
Henryk Iwaniec 
, Ritabrata Munshi
We aim to count the number of rational points on cubic Ch�atelet surfaces. Our results provide evidence toward well-accepted conjectures concerning the density of rational points on such surfaces. Using rather delicate sieve arguments we give a good lower bound for the number of rational points in boxes with respect to a natural height function
