On Manin's conjecture for singular del Pezzo surfaces of degree four, II
On Manin's conjecture for singular del Pezzo surfaces of degree four, II
Abstract This paper establishes the Manin conjecture for a certain non-split singular del Pezzo surface of degree four $X \subset \bfP^4$ . In fact, if U ⊂ X is the open subset formed by deleting the lines from X , and H is the usual projective height function on $\bfP^4(\Q)$ …