Some properties of a class of band matrices

Author:

Hoskins W. D.,Ponzo P. J.

Abstract

Let A ( 2 r + 1 , n ) A(2r + 1,n) denote the n × n n \times n band matrix, of bandwidth 2 r + 1 2r + 1 , with the binomial coefficients in the expansion of ( x 1 ) 2 r {(x - 1)^{2r}} as the elements in each row and column. Using the fact that the rows of A ( 2 r + 1 , n ) A(2r + 1,n) provide the coefficients for the 2 r 2r th central difference, a number of properties of A ( 2 r + 1 , n ) A(2r + 1,n) are obtained for all positive integers r r and n n . These include obtaining explicit formulas for det A ( 2 r + 1 , n ) , A 1 ( 2 r + 1 , n ) , | | A 1 ( 2 r + 1 , n ) | | \det A(2r + 1,n),{A^{ - 1}}(2r + 1,n),||{A^{ - 1}}(2r + 1,n)|{|_\infty } and an upper triangular matrix U U such that A ( 2 r + 1 , n ) U A(2r + 1,n)U is lower triangular.

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,Computational Mathematics,Algebra and Number Theory

Reference6 articles.

1. R. G. Stanton & D. A. Sprott, “Some finite inversion formulae,” Math. Gazette, v. 46, 1962, pp. 197-202.

2. Some continuant determinants arising in physics and chemistry. II;Rutherford, D. E.;Proc. Roy. Soc. Edinburgh Sect. A,1952

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