The term self-adjoint is used in different senses, not all related:
A self-adjoint functor is a functor that is adjoint to itself.
A self-adjoint operator and self-adjoint extension on a Hilbert space.
A self-adjoint morphism in a dagger category.
Last revised on July 26, 2021 at 15:09:43. See the history of this page for a list of all contributions to it.