该文研究次对角元至少有一个为可逆的无穷维Hamilton算子特征值的代数指标问题.基于特征值和特征向量的某些性质,得到一类无穷维Hamilton算子的代数指标为1或2,并举例说明结果的有效性.
This paper deals with the algebraic index of eigenvalues of infinite-dimensional Hamiltonian operators with at least one diagonal elements to be invertible. Based on certain properties of their eigenvalues and eigenvectors, it is obtained that the algebraic index of eigenvalue of a class of infinite-dimensional Hamiltonian operators is 1 or 2. Moreover, some applications are presented to illustrate these results.