Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with matrix-inverse
Search options not deleted
user 32487
For questions about inverses and pseudoinverses of matrices.
0
votes
Sufficient conditions for invertibility of a block tridiagonal matrix
This is a partial answer. These theorems are still too weak to cover the given test matrix.
The following theorems generalize those in Tridiagonal matrices: inversion and conditioning
to all rational …
- 397
1
vote
Sufficient conditions for invertibility of a block tridiagonal matrix
The following is a list of answers I know for some specific cases. However, they are not strong enough for my uses.
Simple conditions
A sufficient, but weak condition is that $C_i = 0$ for each $i$.
…
- 397
5
votes
2
answers
948
views
Sufficient conditions for invertibility of a block tridiagonal matrix
Let $M_n \in \mathbb{R}^{N \times N}$ be a block-tridiagonal matrix:
$$M_n = \begin{bmatrix} B_1 & C_1 & 0 & 0 & \cdots & 0 \\ A_1 & B_2 & C_2 & 0 & \cdots & 0 \\ 0 & A_2 & B_3 & C_3 & \cdots & 0 \\ …
- 397