Dergiler / Communications Faculty of Sciences University of Ankara Series A1: Mathematics and Statistics / 2016 / Cilt: 65 - Sayı: 1
ON THE SPECTRUMS OF SOME CLASS OF SELFADJOINT SINGULAR DIFFERENTIAL OPERATORS
- Sayfa
- 137–145
- DOI
- —
Abstract
In this work, based on the Everitt-Zettl and Calkin-Gorbachukmethods in terms of boundary values all selfadjoint extensions of the minimaloperator generated by some linear singular multipoint symmetric diğerentialoperator expression for ...rst order in the direct sum of Hilbert spaces of vectorfunctions on the right semi-axis are described. Later structure of the spectrumof these extensions is investigated.