- #1

- 12

- 0

I have a rough idea what this is.. an upper triangular matrix, with the odd non-zero element(s), somewhere along it's sub-diagonal. But I need an actual formal definition. Anyone furnish me with one please?

- Thread starter jezza10181
- Start date

- #1

- 12

- 0

I have a rough idea what this is.. an upper triangular matrix, with the odd non-zero element(s), somewhere along it's sub-diagonal. But I need an actual formal definition. Anyone furnish me with one please?

- #2

AlephZero

Science Advisor

Homework Helper

- 6,994

- 292

You probably mean "a block upper triangular matrix with either 1x1 or 2x2 blocks on the diagonal."I have a rough idea what this is.. an upper triangular matrix, with the odd non-zero element(s), somewhere along it's sub-diagonal. But I need an actual formal definition. Anyone furnish me with one please?

http://books.google.co.uk/books?id=...epage&q=quasi upper triangular matrix&f=false

http://reference.wolfram.com/legacy.../AdvancedDocumentationLinearAlgebra3.4.5.html

It should be clear exactly what G&VL mean from the context in the book.

- #3

- 12

- 0

Thanks, the first link was very helpful

- Last Post

- Replies
- 5

- Views
- 49K

- Replies
- 6

- Views
- 29K

- Replies
- 1

- Views
- 13K

- Replies
- 1

- Views
- 2K

- Replies
- 6

- Views
- 946

- Replies
- 1

- Views
- 2K

- Replies
- 2

- Views
- 7K

- Last Post

- Replies
- 1

- Views
- 6K

- Replies
- 2

- Views
- 5K

- Last Post

- Replies
- 3

- Views
- 8K