二阶微分算子积的自伴性

On Self-adjointness of the Product of Two Second-order Differential Operators

本文讨论了由正则和奇异的二阶对称微分算式生成的微分算子的积算子的自伴性，得到了积算子为自伴算子时边条件应满足的充分而必要的条件及若干其他结果．

In this paper the adjointness of the product of two differential operators generated by a second order symmetric differential expression is discussed. The necessaryand sufficient conditions which make the product operators being the adjoint operatorsand other some results are obtained.