A sparsity result on nonnegative real matrices with given spectrum
Let σ=(λ1,...,λn) be the spectrum of a nonnegative real n × n matrix. It is shown that σ is the spectrum of a nonnegative real n × n matrix having at most nonzero entries.
Conjugacy and factorization results on matrix groups
In this survey paper, we present (mainly without proof) a number of results on conjugacy and factorization in general linear groups over fields and commutative rings. We also present the additive analogue in matrix rings of some of these results. The first section deals with the question of expressing elements in the commutator subgroup of the general linear group over a field as (simple) commutators. In Section 2, the same kind of problem is discussed for the general linear group over a commutative...
The Number of Solutions of x3 = 1 in a 3-Group.
Commutative subrings of periodic rings.
Perturbing non-real eigenvalues of nonnegative real matrices.
On a question of Hills concerning co-transposers
A refinement of an inequality of Johnson, Loewy and London on nonnegative matrices and some applications.
On a classic example in the nonnegative inverse eigenvalue problem.
Proceedings of the 2004 workshop on nonnegative matrices, Maynooth, Ireland, July 11--14, 2004.
Page 1