MAXIMAL ACCRETIVE SINGULAR QUASI-DIFFERENTIAL OPERATORS

Pembe IPEK, Zameddin I. ISMAILOV
2017 Hacettepe Journal of Mathematics and Statistics  
In this paper rstly all maximal accretive extensions of the minimal operator generated by a rst order linear singular quasi-dierential expression in the weighted Hilbert space of vector-functions on right semi-axis are described. Later on, the structure of spectrum set of these extensions has been researched.
doi:10.15672/hjms.2017.488 fatcat:7c5t2brrv5bnfiecqxpq2uefc4