考虑[0,π]上一类带一般分离型边界条件的正则Sturm—Liouville问题特征的渐近表示,利用Frechet导数,对特征值进行精细的分析,清楚地给出了方程系数q(x)及边界条件中常数cot α,col β对特征值的影响.使结论更具一般化.
We consider the asymptotic expansion of eigenvalues for a regular Sturm Liouville problem in [0, π]. By combining Frechet derivative, we give a sophisticated analysis for the eigenvalues, which reveals the explicit effects of boundary impedence and equation coefficient.