BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Congruent numbers - John Coates (Cambridge)
DTSTART:20130219T161500Z
DTEND:20130219T171500Z
UID:TALK42679@talks.cam.ac.uk
CONTACT:Teruyoshi Yoshida
DESCRIPTION:The congruent number problem is the oldest unsolved major prob
 lem in number\ntheory\, and\, in retrospect\, the simplest and most down t
 o earth example of the conjecture of Birch and Swinnerton-Dyer. After a br
 ief description of the history\nof the problem\, I shall discuss Y. Tian
 ’s beautiful recent extension to composite\nnumbers\, with arbitrarily m
 any prime factors\, of Heegner’s original proof of the\nexistence of in
 ﬁnitely many congruent numbers. I hope also to say a little at the\nend 
 about possible generalizations of Tian’s work to other elliptic curves.
LOCATION:MR14
END:VEVENT
END:VCALENDAR
