User contributions
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- 17:57, 20 May 2008 (diff | hist) . . (+275) . . Conjugate (group theory)
- 16:43, 20 May 2008 (diff | hist) . . (+497) . . N Conjugate (group theory) (New page: Let <math>G</math> be a group operating on a set <math>S</math>. An element <math>y\in S</math> ''conjugate'' to an element <math>x\in S</math> if there exists an element <math>\a...)
- 15:56, 20 May 2008 (diff | hist) . . (+227) . . m Group theory (added links to some topics) (current)
- 15:55, 20 May 2008 (diff | hist) . . (0) . . m Free group (→Commutivity in Free Groups: correction)
- 15:50, 20 May 2008 (diff | hist) . . (+1,642) . . N Lagrange's Theorem (statement, proof, and a few remarks)
- 23:01, 18 May 2008 (diff | hist) . . (+3) . . m Normal subgroup (→See also: corrected link)
- 23:00, 18 May 2008 (diff | hist) . . (0) . . m Research Science Institute (updated dates)
- 22:56, 18 May 2008 (diff | hist) . . (+4,539) . . N Coset (new page)
- 22:10, 18 May 2008 (diff | hist) . . (+544) . . Quotient set (added note on saturation)
- 21:47, 18 May 2008 (diff | hist) . . (+727) . . N Quotient group (new page) (current)
- 21:43, 18 May 2008 (diff | hist) . . (+1,473) . . N Quotient set (New page: A '''quotient set''' is a set derived from another by an equivalence relation. Let <math>S</math> be a set, and let <math>\mathcal{R}</math> be an equivalence relation. The set o...)
- 21:33, 18 May 2008 (diff | hist) . . (+287) . . Binary relation (→Formal Definition and Notation) (current)
- 21:30, 18 May 2008 (diff | hist) . . (+183) . . Binary relation (→Formal Definition and Notation)
- 22:45, 14 May 2008 (diff | hist) . . (+630) . . Centralizer (added a little) (current)
- 22:40, 14 May 2008 (diff | hist) . . (+1,105) . . N Normalizer (stub) (current)
- 22:30, 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)
- 20:30, 14 May 2008 (diff | hist) . . (+1,125) . . N Order (group theory) (new page)
- 20:13, 14 May 2008 (diff | hist) . . (+305) . . Normal subgroup (added some about characteristic groups; links)
- 20:07, 14 May 2008 (diff | hist) . . (+2,625) . . N Inner automorphism (new page) (current)
- 19:23, 14 May 2008 (diff | hist) . . (+189) . . Nm Automorphism (stub)
- 19:18, 14 May 2008 (diff | hist) . . (+1,626) . . N Fixer (new page)
- 18:52, 14 May 2008 (diff | hist) . . (+1,940) . . N Stabilizer (start)
- 18:47, 14 May 2008 (diff | hist) . . (+134) . . m Monoid (→Monoid Operating on a Set)
- 16:14, 14 May 2008 (diff | hist) . . (+635) . . N Transporter (stub; I think this is an obscure term anyway) (current)
- 21:42, 13 May 2008 (diff | hist) . . (+1,517) . . Fundamental Theorem of Arithmetic (added some)
- 21:32, 13 May 2008 (diff | hist) . . (+47) . . Nm Fundamental theorem of arithmetic (Redirecting to Fundamental Theorem of Arithmetic) (current)
- 21:31, 13 May 2008 (diff | hist) . . (-26) . . Euclid's Lemma (deleted fallacious proof; mentioned converse in proof; edited a little)
- 21:10, 13 May 2008 (diff | hist) . . (+162) . . m Monoid
- 21:09, 13 May 2008 (diff | hist) . . (+2,215) . . Monoid (added some)
- 20:47, 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>, ...)
- 10:29, 11 May 2008 (diff | hist) . . (+21) . . m Center (algebra)
- 10:28, 11 May 2008 (diff | hist) . . (+19) . . m Centralizer (correct link)
- 10:27, 11 May 2008 (diff | hist) . . (+1,334) . . N Centralizer (stub)
- 10:17, 11 May 2008 (diff | hist) . . (+264) . . N Endomorphism (stub) (current)
- 10:15, 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...)
- 10:08, 11 May 2008 (diff | hist) . . (+75) . . Center
- 10:07, 11 May 2008 (diff | hist) . . (0) . . m Center (geometry) (Center moved to Center (geometry): Too general a term)
- 10:07, 11 May 2008 (diff | hist) . . (+31) . . N Center (Center moved to Center (geometry): Too general a term)
- 10:07, 11 May 2008 (diff | hist) . . (+83) . . Normal subgroup (→Examples: center)
- 22:46, 10 May 2008 (diff | hist) . . (+1,157) . . N Jordan-Hölder Theorem (background, statement, proof)
- 22:15, 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...)
- 21:46, 10 May 2008 (diff | hist) . . (0) . . m Zassenhaus's Lemma (→Resources: typo)
- 21:45, 10 May 2008 (diff | hist) . . (+2,338) . . N Zassenhaus's Lemma (background, statement, proof)
- 19:03, 10 May 2008 (diff | hist) . . (+1) . . m Composition series (→Resources: typo) (current)
- 12:37, 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)
- 12:32, 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)
- 12:27, 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)
- 12:19, 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)
- 12:12, 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...)
- 12:01, 10 May 2008 (diff | hist) . . (+3,315) . . Normal subgroup (→Group homomorphism theorems: I think that's enough for now.)
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