Maximal accretive singular quasi-differential operators

Authors : Pembe İPEK, Zameddin İ İSMAİLOV

Pages : 1120-1127

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Publication Date : 2018-10-16

Article Type : Research Paper

Abstract :In this paper firstly all maximal accretive extensions of the minimal  operator generated by a first order linear singular quasi-differential 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.
Keywords : Accretive operator, Quasi differential operator, Spectrum