Browsing Proyecciones: Journal of Mathematics by Subject "Fine spectrum"
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Fine spectrum of the upper triangular matrix U(r, 0, 0, s) over the sequence spaces c0 and c.
Proyecciones. Journal of Mathematics; Vol 37 No 1 (2018); 85-101. -
Spectra and fine spectra for the upper triangular band matrix U(a0, a1, a2; b0, b1, b2) over the sequence space c0
Proyecciones. Journal of Mathematics; Vol 38 No 1 (2019); 145-162.