MATEMATIČKI VESNIK
МАТЕМАТИЧКИ ВЕСНИК



MATEMATIČKI VESNIK
On the fine spectrum of generalized upper double-band matrices $\Delta^{uv}$ over the sequence space $l_1$
J. Fathi and R. Lashkaripour

Abstract

The main purpose of this paper is to determine the fine spectrum of generalized upper triangle double-band matrices $\Delta^{uv}$ over the sequence space $\ell_{1}$.

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Keywords: Spectrum of an operator; matrix mapping; sequence space.

MSC: 47A10, 47B37

Pages:  64$-$73     

Volume  65 ,  Issue  1 ,  2013