2 papers
math.FA2017
Pencils of pairs of projections
Miaomiao Cui, Guoxing Ji
Let be a self-adjoint operator on a complex Hilbert space . We give a sufficient and necessary condition for to be the pencil of a pair of pro…
math.SP2017
General explicit expressions for intertwining operators and direct rotations of two orthogonal projections
Yan-Ni Dou, Wei-Juan Shi, Miao-Miao Cui +1
In this paper, based on the block operator technique and operator spectral theory, the general explicit expressions for intertwining operators and direct rotations of two orthogona…