| Affiliation: | (1) C.N.R.S., URA D0752, Mathématiques, Batiment 425, Université de Paris-Sud, F-91405 Orsay, France (e-mail: colliot@math.u-psud.fr), FR;(2) Institute for Problems of Information Transmission, Russian Academy of Sciences, 19, Bolshoi Karetnyi, Moscow 101447, Russia (e-mail: skoro@ippi.ac.msk.su), RU;(3) Max-Planck-Institut für Mathematik, Gottfried-Claren-Stra?e 26, D-53225 Bonn, Germany (e-mail: skoro@mpim-bonn.mpg.de), DE;(4) Isaac Newton Institute, 20 Clarkson Road, Cambridge CB3 0EH, United Kingdom (e-mail: hpfs100@newton.cam.ac.uk), GB |
