SELFADJOINT EXTENSIONS OF A SINGULAR MULTIPOINT DIFFERENTIAL OPERATOR OF FIRST ORDER


İSMAİLOV Z. , Mert R. O.

ELECTRONIC JOURNAL OF DIFFERENTIAL EQUATIONS, 2013 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume:
  • Publication Date: 2013
  • Title of Journal : ELECTRONIC JOURNAL OF DIFFERENTIAL EQUATIONS

Abstract

In this work, we describe all selfadjoint extensions of the minimal operator generated by linear singular multipoint symmetric differential expression l = (l(1), l(2), l(3)), l(k) = i d/dt + A(k) with selfadjoint operator coefficients A(k), k = 1, 2, 3 in a Hilbert space. This is done as a direct sum of Hilbert spaces of vector-functions