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Questions related to the Birch and Swinnerton-Dyer conjecture about the vanishing order and first Taylor coefficient of the L-functions of elliptic curves at the point 1.

40 votes
Accepted

How did Birch and Swinnerton Dyer arrive at their conjecture?

For what it's worth, here are some historical comments. Both Birch and S-D spoke in Cambridge a few weeks ago, on the history of their conjecture. To my surprise, both of them emphasized the role not …
Kevin Buzzard's user avatar
9 votes

What is the smallest positive integer for which the congruent number problem is unsolved?

Kazuo Matsuno writes (personal communication): "I verified (10 years ago) by using mwrank and magma that E_N:y^2=x^3-N^2x has a non-torsion point if N<=10^6 is congruent to 1,2,3 modulo 8 and the ana …
Kevin Buzzard's user avatar
17 votes
2 answers
2k views

What is the smallest positive integer for which the congruent number problem is unsolved?

The congruent number problem is the problem of figuring out whether a given positive integer $N$ is the area of a right-angled triangle with all side lengths rational. According to Dickson's "History …
Kevin Buzzard's user avatar