Problems / number-theory
number-theory / Arithmetic of elliptic curves; Iwasawa theory
The Birch-Swinnerton-Dyer formula in Selmer corank at most one
For every E/Q and prime q with sq(E)=corankSelq∞(E/Q)∈{0,1}: rankE(Q)=ords=1L(E,s)=sq(E), Sha(E/Q) is finite, and the full BSD leading-term formula holds at every prime, with no hypotheses on reduction, torsion, isogenies, CM or residual representations. By Gross-Zagier-Kolyvagin this covers every curve of analytic rank at most one (curator's reading). The new step is the exact p-adic valuation at every odd p; p=2 comes from the two-primary companion. With family 006 it gives full BSD for a density-one set of quadratic twists of each curve. It says nothing about analytic rank ≥2.