In this paper, a formula for the determinant of heptadiagonal symmetric Toeplitz matrices is obtained. This formula and rational functions are used for studying eigenvalue localization. This work is done by Chebyshev polynomials of the first, second, third and fourth kinds. (c) 2013 Elsevier Inc. All rights reserved.
机构:
CINVESTAV, Dept Math, Ciudad De Mexico 07360, MexicoSTEL Comp Syst Ltd, Moscow 105082, Russia
Grudsky, S. M.
Stukopin, V. A.
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机构:
Don State Tech Univ, Dept Appl Math, Rostov Na Donu 344010, Russia
South Math Inst, Vladikavkaz 862027, RussiaSTEL Comp Syst Ltd, Moscow 105082, Russia