The top eigenpairs at the title mean the maximal,the submaximal,or a few of the subsequent eigenpairs of an Hermitizable......

The first aim of the paper is to study the Hermitizability of second-order differential operators,and then the correspon......

三弦乐谱可由三对角复矩阵生成,人们听到的声音由其谱决定,自然要求此矩阵有实谱.如同量子力学,模型的描述是复算子,可观测量是实......