ELECTRONIC JOURNAL OF DIFFERENTIAL EQUATIONS, 2012 (SCI İndekslerine Giren Dergi)
In this work, we describe all normal extensions of the minimal operator generated by linear singular multipoint formally normal differential expression l - (l(1), l(2), l(3)), l(k) - d/dt + A(k) with selfadjoint operator coefficients A(k) in a Hilbert space. This is done as a direct sum of Hilbert spaces of vector-functions