J-自伴Euler微分算子谱的离散性注记

A Remark on the Discreteness Spectrum of the J-selfadjoint Euler Differential Operator

文〔3,4〕研究了 2 n阶复系数 Euler微分算式生成的 J-对称微分算子 ,得到了 J-自伴Euler微分算子的谱是离散的充分条件 ,本文是对上述文中结论的补充 .

The spectrum of 2n order complex coefficients Euler differential operator was discussed in 〔3,4〕,and some sufficient conditions for the discreteness spectrum of J selfadjoint differential operator associated with J symmetric Euler differential expession.In this paper,we give some additional results to 〔3〕 and 〔4〕.