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math.FA2018
On Lax-Phillips scattering matrix of the abstract wave equation
M. Gawlik, A. Glówczyk, S. Kuzhel
The dependence of singularities of scattering matrices of the abstract wave equation on the choice of asymptotically equivalent outgoing/incoming subspaces is studied. The obtained…
math.FA2010★ 5 cited
On J-Self-Adjoint Operators with Stable C-Symmetry
Seppo Hassi, Sergii Kuzhel
The paper is devoted to a development of the theory of self-adjoint operators in Krein spaces (J-self-adjoint operators) involving some additional properties arising from the exist…