研究带一般边界条件的广义BBM—Burgers方程ut-utxx-uxx+f(u)v=0的初边值问题边界层解的非线性稳定性,其边界条件为u(t,0)=ub(t)→ub(t→+∞),初始值u(0,x)=u0(x)→u+(x→+∞)(u+≠ub).在f″(u)〉0,φx(x)〈0xf(ub)〈0的条件下,用L2-能量方法证明其强边界层解具有非线性稳定性,从而澄清一般边界条件对边界层解的稳定性的影响.
This paper is concerned with the nonlinear stability of boundary layer solution for general initial - boundary value problem for generalized BBM - Burgers equation u, - utxx - uxx +f(u) x = 0 with the general boundary condition u (t,0) = ub (t) →ub ( t→ + ∞ ) and the initial data u (0, x) = u0 (x) →+u + ( x→ + ∞ ) ( u +≠ ub ). Under the condition that f" (u) 〉 0, φx ( x ) 〈 0 and f ″ ( ub ) 〈 0, the strong boundary layer solution for the above initial - boundary value problem has nonlinear stability by means of an L2 - energy method were proved. And clarified the effect of the general boundary data on the stability of boundary layer solution.