2 papers
math.FA2018
On dual definite subspaces in Krein space
A. Kamuda, S. Kuzhel, V. Sudilovskaya
Extensions of dual definite subspaces to dual maximal definite ones are described. The concepts of dual quasi maximal subspaces and quasi basis are introduced and studied. The obta…
math-ph2016
Towards theory of C-symmetries
S. Kuzhel, V. Sudilovskaya
The concept of C-symmetry originally appeared in PT-symmetric quantum mechanics is studied within the Krein spaces framework.