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Shaomei FANG Depatment of Mathematics Shaoguan University Shaoguan China Graduate School Chinese Academy of Engineering Physics Beijing China 《Communications in Nonlinear Science & Numerical Simulation》2001,6(2):102-106
Introduction In [1], the authors established the unique ekistence of the smooth solution for the couplednonlinear equations. These were proposed to describe the iateraction process of internal longwaves. In [2], Ito proposed a recursion operator by which he inferred that the equations possess infinitely many symmetries and constants of motion. In [3], He established the ealstenceo f a smooth solution to the system of coupled nonlinear KdV equationl41. We remark thatSchonbekls] dealt' with a… 相似文献
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1 IntroductionLetAbean×nmatrix ,Indenotestheunitmatrixofordern .Andlet a(λ) =det(λIn-A) =λn+ a1λn- 1+… + an- 1λ+ an (1 .1 )bethecharacteristicpolynomialofA ,theadjointmatrixofλIn-Abe B(λ) =adj(λIn-A) =λn- 1In+λn- 2 B1+… +λ Bn- 2 + Bn- 1. (1 .2 )Then(λΙn-A) - 1= B(λ) / a(λ) . (1 .3) Awell knowLeverri… 相似文献
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