Diophantine Geometry and Differential Equations A meeting in honour of Prof Sir Peter Swinnerton-Dyer's 70th birthday Monday 22nd -- Tuesday 23rd September 1997 To register, and/or to apply for funding, please contact t.hibbitt@newton.cam.ac.uk as soon as possible. Approximate program, with provisional titles Monday 22nd 12:30 Lunch at the Newton Institute 2.00 Colin Sparrow (Cambridge): Ordinary differential equations; explosions and bifurcations 3.30 Noel Lloyd (Aberystwyth): Hilbert's 16th problem, 97 years on 5:00 Miles Reid (Warwick): The cubic surface through the ages 6.00 Reception at the Newton Institute 7:30 Dinner in Trinity Tuesday 23rd 10:00 Coffee at the Newton Institute 10:30 Richard Taylor (Harvard): Weight one forms, congruences and Galois representations 11:45 Jean-Louis Colliot-Thelene (Orsay): Local-to-global principle for varieties over a number field 1:00 Lunch in the Newton Institute 2:00 Jan Nekovar (Cambridge): Euler systems and the conjecture of Birch and Swinnerton-Dyer 3:15 Don Zagier (Max Planck Inst): Diophantine equations and differential equations 4:30 Formal close 6:00 Informal cider (e.g., The Eagle in Bene't Street) The meeting will take place at the Newton Institute in Cambridge, starting at lunch time on Monday 22nd September. The lecture at 5.00 p.m. Monday will be directed at a general mathematical audience, and will be followed by a reception in the Newton Institute. There will be a celebratory dinner (spouses and friends welcome) on Monday evening, in Trinity College, to which family and friends of Sir Peter's have also been invited. The mathematical part of the meeting is supported by the London Mathematical Society, Trinity College, and the Newton Institute. There are limited funds available to support travel and accommodation for UK research students and young mathematicians wishing to attend the meeting. Where appropriate, Warwick AGE money may be available to support non-British EU participants. There will be a charge of <= UKL 25 per head for dinner on Monday evening. Lunch(es) will be available in the Newton Institute. Accommodation (conference rooms in Trinity College, 29 pounds per night) may be reserved via the Institute for the Monday night. Further information is available on the Newton Institute's web page at http://www.newton.cam.ac.uk/psd.html and will be updated regularly. (co-organisers J-L Colliot Th\'el\`ene, N Lloyd, M Reid, N Shepherd-Barron, C Sparrow, P Wilson)