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Pairs of matrices with property L.

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Title: Pairs of matrices with property L.
Author: Chow, Jih-ou
Degree: Master of Arts - MA
Program: Mathematics
Copyright Date: 1958
Subject Keywords Matrices
Issue Date: 2012-01-19
Publisher University of British Columbia
Series/Report no. UBC Retrospective Theses Digitization Project [http://www.library.ubc.ca/archives/retro_theses/]
Abstract: Let A and B be n-square complex matrices with eigenvalues λ₁, λ₂,… λn and μ₁, μ₂,…μn respectively. The matrices A and B are said to have property L if any linear combination aA + bB, with a, b complex, has as eigenvalues the numbers aλᵢ + bμᵢ, i = 1,2, …,n. A theorem of Dr. M. D. Marcus, which gives a necessary and sufficient condition such that two matrices A and B have property L in terms of the traces of various power-products of A and B, is proved. This theorem is used to investigate the conditions on B for the special cases n = 2, 3, and 4, when A is in Jordan canonical form. The final result is a theorem which gives a necessary condition on B for A and B to have property L when A is in Jordan canonical form.
Affiliation: Science, Faculty of
URI: http://hdl.handle.net/2429/40177
Scholarly Level: Graduate

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