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.
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Moscow MV Lomonosov State Univ, Fac Computat Math & Cybernet, Moscow 119992, Russia
Moscow MV Lomonosov State Univ, Kazakhstan Div, Astana 010010, KazakhstanMoscow MV Lomonosov State Univ, Fac Computat Math & Cybernet, Moscow 119992, Russia
Abdikalykov, A. K.
Ikramov, Kh. D.
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Moscow MV Lomonosov State Univ, Fac Computat Math & Cybernet, Moscow 119992, RussiaMoscow MV Lomonosov State Univ, Fac Computat Math & Cybernet, Moscow 119992, Russia
Ikramov, Kh. D.
Chugunov, V. N.
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Russian Acad Sci, Inst Numer Math, Moscow 119991, RussiaMoscow MV Lomonosov State Univ, Fac Computat Math & Cybernet, Moscow 119992, Russia
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China West Normal Univ, Sch Math & Informat, Nanchong 637002, Peoples R ChinaChina West Normal Univ, Sch Math & Informat, Nanchong 637002, Peoples R China