On matrix polynomials with the same finite and infinite elementary divisors

A criterion is presented that characterizes when two matrix polynomials of any size, rank and degree have the same finite and infinite elementary divisors. This characterization inherits a coprimeness condition of the extended unimodular equivalence defined by Pugh and Shelton [17]in the set of real...

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Detalles Bibliográficos
Autores: Amparan Larrabaster, Miren Agurtzane, Marcaida Bengoechea, Silvia, Zaballa Tejada, Juan Bernardo
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/71545
Acceso en línea:http://hdl.handle.net/10810/71545
Access Level:acceso abierto
Descripción
Sumario:A criterion is presented that characterizes when two matrix polynomials of any size, rank and degree have the same finite and infinite elementary divisors. This characterization inherits a coprimeness condition of the extended unimodular equivalence defined by Pugh and Shelton [17]in the set of real or complex matrix polynomials satisfying the constraint that the difference between the number of rows and columns is constant. This extended unimodular equivalence is first generalized to matrices of any size with elements in any principal ideal domain.