arXiv subjects

Caleb Cheung

Publications and source records attributed to Caleb Cheung.

2 recordsLinked to original sources

arXiv2025

Patterns that require distinct singular values

Patterns of m by n matrices of term-rank m for which every real matrix with the pattern has no multiple singular value are characterized. This generalizes Fiedler's characterization of the paths being the only graphs for which every real symmetric matrix with the given graph has no repeated eigenvalue.

math.CO↗

arXiv2025

The Strong Singular Value Property for Matrices

A new property, the strong singular value property, is introduced, developed, and utilized to study the problem of which lists of nonnegative real numbers occur as the singular values of a matrix with a prescribed zero-nonzero pattern.

math.RA↗