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SPECTRA AND FINE SPECTRA OF THE UPPER TRIANGULAR BAND MATRIX U(a; 0; b) OVER THE SEQUENCE SPACE C-0
(UNIV MISKOLC INST MATH, 2019)
The aim of this paper is to obtain the spectrum, fine spectrum, approximate point spectrum, defect spectrum and compression spectrum of the operator U(a;0;b) = [GRAPHICS] (b(0) , b(1) , b(2) not equal 0) on the sequence ...
ON THE SPECTRUM AND HILBERT SCHIMIDT PROPERTIES OF GENERALIZED RHALY MATRICES
(ANKARA UNIV, FAC SCI, 2019)
In this paper, we show that the multiplications of some generalized Rhaly operators are Hilbert Schimidt operators. We also calculate the spectrum and essential spectrum of a special generalized Rhaly matrices on the Hardy ...