scholarly journals Fast Hessenberg Reduction of Some Rank Structured Matrices

2017 ◽  
Vol 38 (2) ◽  
pp. 574-598 ◽  
Author(s):  
L. Gemignani ◽  
L. Robol
Keyword(s):  
Structured Matrices

scholarly journals Global Properties of Eigenvalues of Parametric Rank One Perturbations for Unstructured and Structured Matrices

2021 ◽  
Vol 15 (3) ◽  
Author(s):  
André C. M. Ran ◽  
Michał Wojtylak
Keyword(s):  
Unit Circle ◽  
Structured Matrices ◽  
Additional Structure ◽  
General Properties ◽  
Global Properties ◽  
Classes Of Matrices ◽  
Rank One

AbstractGeneral properties of eigenvalues of $$A+\tau uv^*$$ A + τ u v ∗ as functions of $$\tau \in {\mathbb {C} }$$ τ ∈ C or $$\tau \in {\mathbb {R} }$$ τ ∈ R or $$\tau ={{\,\mathrm{{e}}\,}}^{{{\,\mathrm{{i}}\,}}\theta }$$ τ = e i θ on the unit circle are considered. In particular, the problem of existence of global analytic formulas for eigenvalues is addressed. Furthermore, the limits of eigenvalues with $$\tau \rightarrow \infty $$ τ → ∞ are discussed in detail. The following classes of matrices are considered: complex (without additional structure), real (without additional structure), complex H-selfadjoint and real J-Hamiltonian.

scholarly journals Multidimensional structured matrices and polynomial systems

CALCOLO ◽  
1996 ◽  
Vol 33 (3-4) ◽  
pp. 389-401 ◽  
Author(s):  
Bernard Mourrain ◽  
Victor Y. Pan
Keyword(s):  
Polynomial Systems ◽  
Structured Matrices

Superfast Computations with Singular Structured Matrices over Abstract Fields

1999 ◽  
pp. 323-338 ◽  
Author(s):  
V. Y. Pan ◽  
A. Zheng ◽  
M. Abu Tabanjeh ◽  
Z. Chen ◽  
S. Providence
Keyword(s):  
Structured Matrices
Sign in / Sign up

Export Citation Format

Share Document