摘要
研究非齐次 Toda晶格 ,即一类非齐次非线性微分差分方程的对称与可积性 .给出了这一类方程的 Lie点对称 ,条件对称和精确解 .给出这类方程与Toda晶格之间的可逆点变换 。
In this paper the symmetries and integrability of a nonhomogeneous Toda lattice which are a class of nonhomogeneous nonlinear differential-difference equations are studied.Lie point symmetries,conditional symmetries and the exact solutions of this class of equations are given.An inverse point transformation from this class of equations to Toda lattice is presented.It is showed that this class of equations is intergrable.
出处
《高校应用数学学报（A辑）》
CSCD
北大核心
2002年第2期140-144,共5页
Applied Mathematics A Journal of Chinese Universities(Ser.A)
基金
教育部博士点基金 (1 9990 3 3 5 1 6 )
