# Questions tagged [matrixpencil]

The tag has no usage guidance.

4 questions
Filter by
Sorted by
Tagged with
31 views

### Properties of blocks in blockmatrix A if the matrix pair (E,A) is regular

I am working on a problem from the book "Differential-Algebraic Equations: Analysis and Numerical Solution" by Kunkel, Mehrmann. It is the Exercise 3 from Page 53 concerning matrix pairs $(E,A)$ and ...
20 views

### Canonical form of pairs of matrices over arbitrary field

I'm looking for a canonical form of pairs of matrices over arbitrary field up to equivalence (Calling pairs ($A, B$) and ($A_1, B_1$) over a field F equivalent if invertible C and D exist over F such ...
### Why there is such a $\mu_0$ such that both $A-\mu_0 B$ and $C+\mu_0 D$ are both nonsingular matrices?
Let $A,B,C,D\in \mathbb{C}^{n\times n}$. If both $A-\lambda B$ and $C-\lambda D$ are both regular matrix pencils, there exists $\mu_0\in \mathbb{C}$ such that both $A-\mu_0 B$ and $C+\mu_0 D$ are ...
Let $E,A$ be $m\times n$ matrices. Then I need to show there exists $U,V$ orthogonal of suitable order such that UEV=\begin{bmatrix}E_0&E_{k-1}&\times&\times&\times\\ &0&E_{k-...