Посилання:Nonlinear effects in the regularity problems for infinite dimensional evolutions of unbounded spin systems / A.V. Antoniouk, A.V. Antoniouk // Condensed Matter Physics. — 2006. — Т. 9, № 1(45). — С. 5-14. — Бібліогр.: 18 назв. — англ.
Підтримка:Authors are grateful to the referee for careful reading the manuscript as well as for making
several suggestions for its improvement. A warm hospitality of organizers during the conference in
Lviv is much appreciated.
We study the regularity problems for unbounded spin systems of anharmonic oscillators, that approximate
multi-dimensional Euclidean field theories. The main attention is paid to the effect of anharmonism on the
C∞-regularity properties of evolutional semigroup. Our approach is based on a new class of nonlinear estimates
on variations, that permit to obtain regular properties for essentially nonlinear equations.