BOUNDEDLY SOLVABILITY OF FIRST ORDER DELAY DIFFERENTIAL OPERATORS WITH PIECEWISE CONSTANT ARGUMENTS


Al P. I. , Ismailov Z. I.

TWMS JOURNAL OF APPLIED AND ENGINEERING MATHEMATICS, cilt.9, ss.396-403, 2019 (ESCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 9 Konu: 2
  • Basım Tarihi: 2019
  • Dergi Adı: TWMS JOURNAL OF APPLIED AND ENGINEERING MATHEMATICS
  • Sayfa Sayıları: ss.396-403

Özet

Using the methods of operator theory, we investigate all boundedly solvable extensions of a minimal operator generated by first order delay differential-operator expression with piecewise constant argument in the Hilbert space of vector-functions at finite interval. Also spectrum of these extensions is studied.