論文

査読有り
2015年11月

A finite-step construction of totally nonnegative matrices with specified eigenvalues

Numer. Algor.
  • Akaiwa K
  • ,
  • Nakamura Y
  • ,
  • Iwasaki M
  • ,
  • Tsutsumi H
  • ,
  • Kondo K

70
3
開始ページ
469
終了ページ
484
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s11075-015-9957-x
出版者・発行元
SPRINGER

Matrices where all minors are nonnegative are said to be totally nonnegative (TN) matrices. In the case of banded TN matrices, which can be expressed by products of several bidiagonal TN matrices, Fukuda et al. (Annal. Mat. Pura Appl. 192, 423-445, 2013) discussed the eigenvalue problem from the viewpoint of the discrete hungry Toda (dhToda) equation. The dhToda equation is a discrete integrable system associated with box and ball systems. In this paper, we consider an inverse eigenvalue problem for such banded TN matrices by examining the properties of the dhToda equation. This problem is a real-valued nonnegative inverse eigenvalue problem. First, we show the determinant solution to the dhToda equation with suitable boundary conditions. Next, we clarify the relationship between the characteristic polynomials of the banded TN matrices and the determinant solution. Finally, taking this relationship into account, we design a finite-step procedure for constructing banded TN matrices with specified eigenvalues. We also present an example to demonstrate this procedure.

リンク情報
DOI
https://doi.org/10.1007/s11075-015-9957-x
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000363268900002&DestApp=WOS_CPL
ID情報
  • DOI : 10.1007/s11075-015-9957-x
  • ISSN : 1017-1398
  • eISSN : 1572-9265
  • Web of Science ID : WOS:000363268900002

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