On spectral variation of two-parameter matrix eigenvalue problem
Michael Gil' · Publicationes Mathematicae Debrecen · 2015
We consider the two-parameter eigenvalue problem Zjvj -λ1Aj1vj -λ2Aj2vj = 0, where λj ∈ C; Zj, A jk (j, k = 1, 2) are matrices.Bounds for the variation of the spectrum of that problem under perturbations are suggested.