一类具指数系数的对称微分算子的谱及亏指数

ON THE SPECTRUM AND DEFICIENCY INDICES OF A CLASS OF SYMMETRIC ORDINARY DIFFERENTIAL OPERATORS WITH EXPONENTIAL COEFFICIENTS

就一类具指数函数系数的高阶对称微分算子得到了谱是离散的一些充分条件,并 给出了完全可达的亏指数域.

In this paper, we study the discrete spectrum and the deficiency indices of a class of symmetric ordinary differential operators, obtain some sufficient conditions for the spectrum to be discrete and give the field of the deficiency indices.