TURKISH JOURNAL OF MATHEMATICS, vol.44, no.2, pp.481-490, 2020 (SCI-Expanded)
In this paper, using the Calkin-Gorbachuk method, the general form of all maximally dissipative extensions of the minimal operator generated by the first order linear symmetric canonical type quasi-differential expression in the weighted Hilbert space of vector functions has been found. Also, the spectrum set of these extensions has been investigated.