User contributions
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- 23:45, 14 May 2008 (diff | hist) . . (+630) . . Centralizer (added a little) (current)
- 23:40, 14 May 2008 (diff | hist) . . (+1,105) . . N Normalizer (stub) (current)
- 23:30, 14 May 2008 (diff | hist) . . (+4,048) . . N Characteristic subgroup (New page: A '''characteristic subgroup''' of a group <math>G</math> is a subgroup of <math>G</math> that is stable under every automorphism on <math>G</math>. Since the map <math>y \map...) (current)
- 21:30, 14 May 2008 (diff | hist) . . (+1,125) . . N Order (group theory) (new page)
- 21:13, 14 May 2008 (diff | hist) . . (+305) . . Normal subgroup (added some about characteristic groups; links)
- 21:07, 14 May 2008 (diff | hist) . . (+2,625) . . N Inner automorphism (new page) (current)
- 20:23, 14 May 2008 (diff | hist) . . (+189) . . Nm Automorphism (stub)
- 20:18, 14 May 2008 (diff | hist) . . (+1,626) . . N Fixer (new page)
- 19:52, 14 May 2008 (diff | hist) . . (+1,940) . . N Stabilizer (start)
- 19:47, 14 May 2008 (diff | hist) . . (+134) . . m Monoid (→Monoid Operating on a Set)
- 17:14, 14 May 2008 (diff | hist) . . (+635) . . N Transporter (stub; I think this is an obscure term anyway) (current)
- 22:42, 13 May 2008 (diff | hist) . . (+1,517) . . Fundamental Theorem of Arithmetic (added some)
- 22:32, 13 May 2008 (diff | hist) . . (+47) . . Nm Fundamental theorem of arithmetic (Redirecting to Fundamental Theorem of Arithmetic) (current)
- 22:31, 13 May 2008 (diff | hist) . . (-26) . . Euclid's Lemma (deleted fallacious proof; mentioned converse in proof; edited a little)
- 22:10, 13 May 2008 (diff | hist) . . (+162) . . m Monoid
- 22:09, 13 May 2008 (diff | hist) . . (+2,215) . . Monoid (added some)
- 21:47, 13 May 2008 (diff | hist) . . (+755) . . N Fiber product (New page: The '''fiber product''', also called the '''pullback''' is an idea in category theory which occurs in many areas of mathematics. == Definition == Let <math>X</math>, <math>Y</math>, ...)
- 11:29, 11 May 2008 (diff | hist) . . (+21) . . m Center (algebra)
- 11:28, 11 May 2008 (diff | hist) . . (+19) . . m Centralizer (correct link)
- 11:27, 11 May 2008 (diff | hist) . . (+1,334) . . N Centralizer (stub)
- 11:17, 11 May 2008 (diff | hist) . . (+264) . . N Endomorphism (stub) (current)
- 11:15, 11 May 2008 (diff | hist) . . (+589) . . N Center (algebra) (New page: In general, the '''center''' of an algebraic structure is the set of elements which commute with every of the structure. With groups, this definition is straightforward; for rings...)
- 11:08, 11 May 2008 (diff | hist) . . (+75) . . Center
- 11:07, 11 May 2008 (diff | hist) . . (0) . . m Center (geometry) (Center moved to Center (geometry): Too general a term)
- 11:07, 11 May 2008 (diff | hist) . . (+31) . . N Center (Center moved to Center (geometry): Too general a term)
- 11:07, 11 May 2008 (diff | hist) . . (+83) . . Normal subgroup (→Examples: center)
- 23:46, 10 May 2008 (diff | hist) . . (+1,157) . . N Jordan-Hölder Theorem (background, statement, proof)
- 23:15, 10 May 2008 (diff | hist) . . (+2,023) . . N Schreier's Theorem (New page: '''Schreier's Refinement Theorem''' is a result in group theory. Otto Schreir discovered it in 1928, and used it to give an improved proof of the Jordan-Hölder Theorem. Six year...)
- 22:46, 10 May 2008 (diff | hist) . . (0) . . m Zassenhaus's Lemma (→Resources: typo)
- 22:45, 10 May 2008 (diff | hist) . . (+2,338) . . N Zassenhaus's Lemma (background, statement, proof)
- 20:03, 10 May 2008 (diff | hist) . . (+1) . . m Composition series (→Resources: typo) (current)
- 13:37, 10 May 2008 (diff | hist) . . (+553) . . N Cyclic group (New page: A '''cyclic group''' <math>G</math> is a group generated by a single element. Some sources add the stipluation that <math>G</math> be finite. The term '''monogenous group''', however, ge...) (current)
- 13:32, 10 May 2008 (diff | hist) . . (+593) . . N Simple group (New page: A '''simple group''' is a non-trivial group (i.e., a group with at least two elements) that has no non-trivial normal subgroups, i.e., none other than itself and <math>\{e\}</math>...) (current)
- 13:27, 10 May 2008 (diff | hist) . . (+920) . . N Klein 4-group (New page: The '''Klein 4-group''' is an Abelian group. It is the smallest non-cyclic group. It is the underlying group of the four-element field. Th...) (current)
- 13:19, 10 May 2008 (diff | hist) . . (+877) . . N Jordan-Hölder series (New page: A '''Jordan-Hölder series''' of a group <math>G</math> is a composition series <math>(G_i)_{0\le i \le n}</math> of <math>G</math> such that <math>G_i/G_{i+1}</math> is a [[simple...) (current)
- 13:12, 10 May 2008 (diff | hist) . . (+1,668) . . N Composition series (New page: A '''composition series''' is a way of describing a group. == Definition == A composition series of a group <math>G</math> with idenitity <math>e</math> is a finite sequence <math>(G...)
- 13:01, 10 May 2008 (diff | hist) . . (+3,315) . . Normal subgroup (→Group homomorphism theorems: I think that's enough for now.)
- 18:11, 9 May 2008 (diff | hist) . . (+1,523) . . Normal subgroup (→Group homomorphism theorems: added a little more)
- 18:08, 8 May 2008 (diff | hist) . . (+3,854) . . Normal subgroup (→Group homomorphism theorems: added some more)
- 17:06, 8 May 2008 (diff | hist) . . (+24) . . Nm Surjective (redirect) (current)
- 16:33, 8 May 2008 (diff | hist) . . (-116) . . Talk:Limit
- 21:31, 7 May 2008 (diff | hist) . . (+4,849) . . N Normal subgroup (start of an article; I'll be back to finish it)
- 21:31, 7 May 2008 (diff | hist) . . (+665) . . Talk:Limit
- 20:41, 7 May 2008 (diff | hist) . . (+218) . . N Trivial group (New page: The '''trivial group''' is a group with only one element: the identity. It is a normal subgroup of every group. It is its only subgroup, but it is not a simple group. {{stu...) (current)
- 20:37, 7 May 2008 (diff | hist) . . (+7) . . m Subgroup (elements are not a set; rather, they may constitute a set) (current)
- 17:29, 7 May 2008 (diff | hist) . . (+562) . . Talk:Limit
- 17:24, 7 May 2008 (diff | hist) . . (+2,171) . . Limit (ugh, started to clean)
- 22:53, 6 May 2008 (diff | hist) . . (+843) . . Talk:Limit
- 17:14, 1 May 2008 (diff | hist) . . (+3,086) . . N 2008 USAMO Problems/Problem 1 (problem and solution)
- 15:47, 27 April 2008 (diff | hist) . . (+2,642) . . N 2001 Iran NMO (Round 3) Problems/Problem 5 (problem and solution) (current)
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