Positive maps which are bijective on the set of rank projections
Abstract
Extending Wigner's theorem we give a characterization of positive maps of B(H) into itself which map the set of rank k projections onto itself.
0
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.