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24 May 2025
- diffhist Matrix (mathematics) 21:37 +244 David Eppstein talk contribs (source other use of scalar product)
- diffhist Uniform tilings in hyperbolic plane 17:58 −23 94.41.249.233 talk (Fix trihexagonal tiling image in Archimedean Solids and Tessellations table not being scaled properly) Tag: Visual edit: Switched
- diffhist Image (mathematics) 17:04 0 Jochen Burghardt talk contribs (Undid revision 1291782244 by NeilOnWiki (talk): X and Y need to be given in order to define image/preimage (there was a lengthy discussion about this and related issues some time ago, I think at Talk:Function_(mathematics)/Archive_14#Towards_a_coherent_article_about_functions_(mathematics))) Tag: Undo
- diffhist Matrix (mathematics) 09:52 0 Headbomb talk contribs (fix)
- diffhist Matrix (mathematics) 09:17 −117 Headbomb talk contribs (1993)
- diffhist Matrix (mathematics) 04:36 +82 David Eppstein talk contribs (→Historical references: archive link and full volume title for Sylvester 1904)
- diffhist Matrix (mathematics) 04:32 −21 David Eppstein talk contribs (Undo citation to book garbaged by Citation bot mixing in info from book review)
- diffhist Kernel (algebra) 03:21 −22 Gramix13 talk contribs (Reworded instances of "we" per MOS:MATH#NOWE)
- diffhist Kernel (algebra) 03:17 −64 Gramix13 talk contribs (Removed "note that".)
- diffhist Kernel (algebra) 03:09 +287 Gramix13 talk contribs (Added example of kernel to the lead.)
- diffhist Kernel (algebra) 02:53 +24 Gramix13 talk contribs (Added citation for the identity element of a group being inside the kernel.)
- diffhist Kernel (algebra) 02:51 −32 Gramix13 talk contribs (→Kernel structures: Adjusted citation on kernel/normal subgroup criterion.)
- diffhist Infinite group 02:32 +31 ALittleClass talk contribs (added tarski monster group as an example) Tag: Visual edit
- diffhist Kernel (algebra) 02:22 +20 Dedhert.Jr talk contribs (→Kernel structures: cn tag)
- diffhist Kernel (algebra) 02:22 +20 Dedhert.Jr talk contribs (→Group homomorphisms: cn tag)
23 May 2025
- diffhist Matrix (mathematics) 22:05 +167 David Eppstein talk contribs (source transformation matrix)
- diffhist Kernel (algebra) 16:59 +45 Nempnet talk contribs (Added authors to footnotes, fixed footnote errors)
- diffhist m Algebraic structure 16:56 0 Unlimiter talk contribs (Hyphenated some terms.)
- diffhist Image (mathematics) 11:12 0 NeilOnWiki talk contribs (→top: Postponed use of 'X to Y' to second para from first, where it wasn't needed.) Tag: Reverted
- diffhist Kernel (algebra) 03:37 +1 Gramix13 talk contribs (Sorted references)
- diffhist Kernel (algebra) 03:34 +37 Gramix13 talk contribs (→Group homomorphisms: Added citation previously removed.)
- diffhist Kernel (algebra) 03:28 +18 Gramix13 talk contribs (Changed "Ralph" to "McKenzie") Tag: harv or sfn error
- diffhist Kernel (algebra) 03:27 +1,224 Gramix13 talk contribs (Added page citations for Dummit, Foote)
- diffhist Kernel (algebra) 02:30 +69 Gramix13 talk contribs (Added page numbers for Ralph et. al.) Tag: harv or sfn error
- diffhist Kernel (algebra) 02:09 +88 Gramix13 talk contribs (Added page citations for Fraleigh.) Tag: harv or sfn error
- diffhist Kernel (algebra) 01:57 +90 Gramix13 talk contribs (Added page citations for Hungerford)
- diffhist Matrix (mathematics) 01:40 +307 David Eppstein talk contribs (source square matrices as examples of noncommutative rings)
- diffhist Kernel (algebra) 01:07 +69 Gramix13 talk contribs (Added page citations for Axler)
- diffhist Normal subgroup 00:46 +8 JayBeeEll talk contribs (Revert a year-old edit that was mostly pointless but also created many run-on sentences)
- diffhist Kernel (algebra) 00:43 +72 Gramix13 talk contribs (Added page citations for Burris, Stanley) Tag: harv or sfn error
22 May 2025
- diffhist Kernel (algebra) 17:45 −2 David Eppstein talk contribs (attempt to make the short description less technical while avoiding vague and unspecific "concept in" uselessness)
- diffhist Normal subgroup 14:57 +27 129.104.244.74 talk (→Operations taking subgroups to subgroups)
- diffhist Kernel (algebra) 09:45 +15 D.Lazard talk contribs (Undid revision 1291568716 by Gramix13 (talk) WP:NOTDEF means that the description needs not to be accurrate, but suffices to give an idea of the subject of the article. Here "concept in" is too vague. "Inverse image of 0" is correct, since for most readers, "homomorphism" means "linear map". If you disagree, take it on the talk page.) Tag: Undo
- diffhist Kernel (algebra) 07:39 +170 David Eppstein talk contribs (book citations need page numbers (best separately for each citation); also at least one citation is missing altogether)
- diffhist Matrix (mathematics) 06:48 −1 Dedhert.Jr talk contribs (→Row operations: fix citation)
- diffhist Kernel (algebra) 01:49 −15 Gramix13 talk contribs (Addressing WP:SDNOTDEF by using "Concept in [academic field]" format since there are two definitions for kernel depending on whether the structure is group-like (not to mention some groups don't have a "zero"), so it wouldn't be possible to accurately describe it with one definition while also avoiding jargon. I am open to discussion on what short description would be appropriate for this article.) Tag: Reverted
21 May 2025
- diffhist Matrix (mathematics) 20:55 +1 Quondum talk contribs (some punctuation cleanup (placing outside <math> tags when inline, while preventing wrapping using {{tmath}}))
- diffhist Matrix (mathematics) 19:01 −2 Quondum talk contribs (typo)
- diffhist Matrix (mathematics) 18:55 −2,216 Quondum talk contribs (standardizing (almost) on {{sfnp}} for short references for uniformity of sfn format)
- diffhist Image (mathematics) 18:33 −55 NeilOnWiki talk contribs (→top: Replaced the use of "former notion" referring to preimage of a function, which I found confusing; removed superfluous link to "domain" of a function.)
- diffhist Matrix (mathematics) 18:00 −186 Quondum talk contribs (→Mathematical references: rm an unused reference that is also not mathematical in nature)
- diffhist Matrix (mathematics) 17:51 +32 David Eppstein talk contribs (use shortened references for Sylvester's collected papers)
- diffhist Matrix (mathematics) 13:58 −1 Quondum talk contribs (ƒ → f (replacing only curly ƒ))
- diffhist Matrix (mathematics) 13:56 +104 Quondum talk contribs (controlling wrapping of punctuation around <math> using {{tmath}}; consistent spacing of "m×n matrix"; reducing height of inline <math>)
- diffhist Matrix (mathematics) 13:34 +349 Quondum talk contribs (more uniform use of <math display="block">)
- diffhist Kernel (algebra) 08:14 −4,179 D.Lazard talk contribs (Restored revision 1291401192 by Gramix13 (talk): Restoring edits reverted by mistake. This does not mean that they must be kept) Tags: Twinkle Undo Disambiguation links added
- diffhist Kernel (algebra) 08:09 +4,162 D.Lazard talk contribs (Reverted 18 edits by Gramix13 (talk): WP:SDNOTDEF) Tags: Twinkle Undo Reverted
- diffhist Matrix (mathematics) 01:28 +20 David Eppstein talk contribs (→History: adjust ref)
- diffhist Kernel (algebra) 01:01 +17 Gramix13 talk contribs (Made short description be more broad than merely mentioning 0.) Tag: Reverted
- diffhist Kernel (algebra) 00:39 +3 Gramix13 talk contribs (Expanded definition of module homomorphism to mention abelian groups.)