Noncirculant Toeplitz matrices all of whose powers are Toeplitz

Kent Griffin; Jeffrey L. Stuart; Michael J. Tsatsomeros

Czechoslovak Mathematical Journal (2008)

  • Volume: 58, Issue: 4, page 1185-1193
  • ISSN: 0011-4642

Abstract

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Let a , b and c be fixed complex numbers. Let M n ( a , b , c ) be the n × n Toeplitz matrix all of whose entries above the diagonal are a , all of whose entries below the diagonal are b , and all of whose entries on the diagonal are c . For 1 k n , each k × k principal minor of M n ( a , b , c ) has the same value. We find explicit and recursive formulae for the principal minors and the characteristic polynomial of M n ( a , b , c ) . We also show that all complex polynomials in M n ( a , b , c ) are Toeplitz matrices. In particular, the inverse of M n ( a , b , c ) is a Toeplitz matrix when it exists.

How to cite

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Griffin, Kent, Stuart, Jeffrey L., and Tsatsomeros, Michael J.. "Noncirculant Toeplitz matrices all of whose powers are Toeplitz." Czechoslovak Mathematical Journal 58.4 (2008): 1185-1193. <http://eudml.org/doc/37895>.

@article{Griffin2008,
abstract = {Let $a$, $b$ and $c$ be fixed complex numbers. Let $M_n(a,b,c)$ be the $n\times n$ Toeplitz matrix all of whose entries above the diagonal are $a$, all of whose entries below the diagonal are $b$, and all of whose entries on the diagonal are $c$. For $1\le k\le n$, each $k\times k$ principal minor of $M_n(a,b,c)$ has the same value. We find explicit and recursive formulae for the principal minors and the characteristic polynomial of $M_n(a,b,c)$. We also show that all complex polynomials in $M_n(a,b,c)$ are Toeplitz matrices. In particular, the inverse of $M_n(a,b,c)$ is a Toeplitz matrix when it exists.},
author = {Griffin, Kent, Stuart, Jeffrey L., Tsatsomeros, Michael J.},
journal = {Czechoslovak Mathematical Journal},
keywords = {Toeplitz matrix; Toeplitz inverse; Toeplitz powers; principal minor; Fibonacci sequence; Toeplitz matrix; Toeplitz inverse; Toeplitz powers; principal minor; Fibonacci sequence},
language = {eng},
number = {4},
pages = {1185-1193},
publisher = {Institute of Mathematics, Academy of Sciences of the Czech Republic},
title = {Noncirculant Toeplitz matrices all of whose powers are Toeplitz},
url = {http://eudml.org/doc/37895},
volume = {58},
year = {2008},
}

TY - JOUR
AU - Griffin, Kent
AU - Stuart, Jeffrey L.
AU - Tsatsomeros, Michael J.
TI - Noncirculant Toeplitz matrices all of whose powers are Toeplitz
JO - Czechoslovak Mathematical Journal
PY - 2008
PB - Institute of Mathematics, Academy of Sciences of the Czech Republic
VL - 58
IS - 4
SP - 1185
EP - 1193
AB - Let $a$, $b$ and $c$ be fixed complex numbers. Let $M_n(a,b,c)$ be the $n\times n$ Toeplitz matrix all of whose entries above the diagonal are $a$, all of whose entries below the diagonal are $b$, and all of whose entries on the diagonal are $c$. For $1\le k\le n$, each $k\times k$ principal minor of $M_n(a,b,c)$ has the same value. We find explicit and recursive formulae for the principal minors and the characteristic polynomial of $M_n(a,b,c)$. We also show that all complex polynomials in $M_n(a,b,c)$ are Toeplitz matrices. In particular, the inverse of $M_n(a,b,c)$ is a Toeplitz matrix when it exists.
LA - eng
KW - Toeplitz matrix; Toeplitz inverse; Toeplitz powers; principal minor; Fibonacci sequence; Toeplitz matrix; Toeplitz inverse; Toeplitz powers; principal minor; Fibonacci sequence
UR - http://eudml.org/doc/37895
ER -

References

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  1. Griffin, K., Solving the principal minor assignment problem and related computations, PhD. Dissertation Washington State University Washington (2006). (2006) MR2709319
  2. Griffin, K., Tsatsomeros, M. J., Principal minors, Part I: A method for computing all the principal minors of a matrix, Linear Algebra Appl. 419 (2006), 107-124. (2006) MR2263114
  3. Griffin, K., Tsatsomeros, M. J., Principal minors, Part II: The principal minor assignment problem, Linear Algebra Appl. 419 (2006), 125-171. (2006) MR2263115
  4. Huang, N. M., Cline, R. E., 10.1145/321707.321714, J. Assoc. Comput. Mach. 19 (1972), 437-444. (1972) Zbl0259.65032MR0312704DOI10.1145/321707.321714
  5. Shalom, T., 10.1016/0024-3795(87)90345-4, Linear Algebra Appl. 96 (1987), 211-226. (1987) Zbl0644.15005MR0910995DOI10.1016/0024-3795(87)90345-4

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