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On the construction of Jacobi matrices from spectral data

Author
Rojo J., Oscar

Soto, Ricardo

Full text
http://revistas.ufro.cl/ojs/index.php/cubo/article/view/1840
Abstract
The problem of constructing an n by n Jacobi matrix J with prescribed spectrum {λi}n1, such that the submatrix J(ρ), obtained from J by deleting its ρth row and column, also has a prescribed spectrum {𝜇i}n-11 is studied. The cases ρ=1 and ρ=n are well known. For the case 2 ≤ ρ ≤ n-1 it is shown that the problem has a unique solution under the condition λi < 𝜇i < λi+1, i=1, 2, . . . , n-1.
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Artes, Arquitectura y UrbanismoCiencias Agrarias, Forestales y VeterinariasCiencias Exactas y NaturalesCiencias SocialesDerechoEconomía y AdministraciónFilosofía y HumanidadesIngenieríaMedicinaMultidisciplinarias
Institutions
Universidad de ChileUniversidad Católica de ChileUniversidad de Santiago de ChileUniversidad de ConcepciónUniversidad Austral de ChileUniversidad Católica de ValparaísoUniversidad del Bio BioUniversidad de ValparaísoUniversidad Católica del Nortemore

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