Research Group:
Speaker:
V. Mastropietro,
Institution:
University "Tor Vergata", Roma
Schedule:
Tuesday, November 25, 2003 - 06:30 to 07:30
Location:
room D
Abstract:
I describe a work, in collaboration with G.Gentile, in which we have defined a Linsdedt series expansion for the periodic solutions of nonlinear wave equations like the Klein-Gordon or the sine-Gordon equations. After suitable resummation this expansion is convergent for a large set of amplitudes and a large set of masses of full Lebesgue measure. We have recently extended this result, in collaboration also with M.Procesi, to the case of the string equation.