双正交向量、半双线性型与某些物理算子
Biorthogonal vectors, sesquilinear forms and some physical operators
摘要：
继续在以前的文章中进行的分析，我们讨论了一些功能的非自伴算子和sesquilinear形式的定义从两个双正交的家庭的向量，如所谓的广义Riesz系统，享有一定的性质。特别是我们讨论了当它们形成两个$\D$ -准基时会发生什么。
英文摘要：
Continuing the analysis undertaken in previous articles, we discuss some features of non-self-adjoint operators and sesquilinear forms which are defined starting from two biorthogonal families of vectors, like the so-called generalized Riesz systems, enjoying certain properties. In particular we discuss what happens when they forms two $\D$-quasi bases.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
