对称算子自伴域的一种新描述

A New Description of Self-adjoint Domain of Symmetric Operators

对亏指数（ｍ，ｍ）的问对称算子Ｔ０，Ｉｍ（Ｔｙ，ｙ）总可表成秩为２ｍ的二次型，利用这一特征得到了Ｔ０自伴扩张域的一种新的完全描述方法．将其用到对称微分算子中去，直接可得到自伴域的解析描述．

If the deficiency indices of closed symmetric operator T0 is (m,m), then Im (T0,y,y) is aquadratic form of rank 2m. Using this characterization we get a new method of self-adjoint extension of T0.