Displaying similar documents to “The monodromization and Harper equation”

New results about semi-positive matrices

Jonathan Dorsey, Tom Gannon, Charles R. Johnson, Morrison Turnansky (2016)

Czechoslovak Mathematical Journal


Our purpose is to present a number of new facts about the structure of semipositive matrices, involving patterns, spectra and Jordon form, sums and products, and matrix equivalence, etc. Techniques used to obtain the results may be of independent interest. Examples include: any matrix with at least two columns is a sum, and any matrix with at least two rows, a product, of semipositive matrices. Any spectrum of a real matrix with at least 2 elements is the spectrum of a square semipositive...