CHERNOFF-LIKE COUNTEREXAMPLES RELATED TO UNBOUNDED OPERATORS
2020 年 74 巻 1 号 p. 105-108
詳細
2020 年 74 巻 1 号 p. 105-108
In this paper, we give an example of a closed unbounded operator whose square domain and adjoint's square domain are equal and trivial. Then, we come up with an essentially self-adjoint whose square has a trivial domain.
