Talk:Kernel (matrix)

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Can somebody make a multi-dimesional example here? (more than one free variable....)

I am for the idea of merging this article (Null Space), with Kernel -- minghan 15:23, 26 January 2006 (UTC)[reply]

I would prefer to have kernel (mathematics) continue to focus on the more general case while this article addresses the restricted case of kernels of matrix operators in linear algebra. Deco 02:33, 27 January 2006 (UTC)[reply]

Changed my mind. This article presents itself as the same concept as kernels, so a merge is warranted. Deco 02:35, 27 January 2006 (UTC)[reply]

A slight philosophical difference is that a matrix is not a map, whereas a linear transformation is, even though the two are commonly identified. The null space of a matrix refers to what would be the kernel if we thought of it as a linear transformation. Whether the articles are written this way, I don't know, but I think that at least in theory, the two should be considered separate concepts, that you realize are the same after a little bit of thinking.

Hmmm. I still suggest that the merge discussion be centralized in kernel (mathematics). — Arthur Rubin | (talk) 02:57, 17 March 2006 (UTC)[reply]

Division by Zero

"Nullity" should no longer redirect here, since it appears that someone has managed to solve the "divide by zero problem"... and the solution is called Nullity. (http://www.bbc.co.uk/berkshire/content/articles/2006/12/06/divide_zero_feature.shtml) Medevilenemy 19:24, 6 December 2006 (UTC)[reply]

No offense, but that "solution" is total bullcrap. --Wooty Woot? contribs 09:54, 7 December 2006 (UTC)[reply]

It's not Wikipedia's job to decide whether a theory is correct or not. Leave that to discussion within the mathematics community and related journals. See the note at the bottom of WP:NOR. --Tjohns ✎ 12:03, 7 December 2006 (UTC)[reply]

I think discussion regarding this should take place over at Talk:Nullity. --Tjohns ✎ 12:00, 7 December 2006 (UTC)[reply]

Major revision

I just posted a major revision to this page, and I added the WikiProject Mathematics template above. Jim 03:06, 9 September 2007 (UTC)[reply]

That is not an "expansion" as your edit summary says, but a "limitation" to the special case of a finite dimensional linear operator. The definition is much wider than for matrices only. −Woodstone 06:05, 9 September 2007 (UTC)[reply]