2 papers
math.SP2008
Generalized Jacobi operators in Krein spaces
Maxim Derevyagin
A special class of generalized Jacobi operators which are self-adjoint in Krein spaces is presented. A description of the resolvent set of such operators in terms of solutions of t…
math.CA2008
An operator approach to multipoint Pade approximations
Maxim S. Derevyagin, Alexei S. Zhedanov
First, an abstract scheme of constructing biorthogonal rational systems related to some interpolation problems is proposed. We also present a modification of the famous step-by-ste…