User contributions for Vipul

21 August 2025

• 06:3706:37, 21 August 2025 diff hist +19‎ Subgroup structure of alternating group:A6 ‎ →‎Table classifying subgroups up to permutation automorphisms current

13 August 2025

• 22:3822:38, 13 August 2025 diff hist +102‎ Help:FAQ ‎ →‎Features that require login current
• 22:3722:37, 13 August 2025 diff hist −368‎ Help:FAQ ‎ →‎Features that don't require login

24 July 2025

• 23:5723:57, 24 July 2025 diff hist +46‎ Groupprops:Error log ‎ →‎Factual errors in high traffic pages
• 23:5423:54, 24 July 2025 diff hist +518‎ Groupprops:Error log ‎ →‎Factual errors in high traffic pages
• 23:5123:51, 24 July 2025 diff hist 0‎ Subgroup structure of groups of order 24 ‎ →‎Table of number of subgroups current

1 June 2025

• 16:3616:36, 1 June 2025 diff hist −18‎ Characteristicity is not finite direct power-closed ‎ →‎Statement with symbols (n = 2 or square case, which is somewhat stronger than the general statement) current
• 16:3616:36, 1 June 2025 diff hist +78‎ Characteristicity is not finite direct power-closed ‎ →‎Statement with symbols
• 14:5214:52, 1 June 2025 diff hist −12‎ Characteristicity is not upper join-closed ‎ →‎Another generic example current
• 14:5114:51, 1 June 2025 diff hist +185‎ Characteristicity is not upper join-closed ‎ →‎Proof

7 December 2024

• 20:3520:35, 7 December 2024 diff hist 0‎ 2-cocycle for trivial group action ‎No edit summary current
• 20:3020:30, 7 December 2024 diff hist +1‎ 2-cocycle for trivial group action ‎ →‎Definition
• 20:2420:24, 7 December 2024 diff hist +119‎ Normalized 2-cocycle for trivial group action ‎ →‎Equivalence of definitions current
• 20:2320:23, 7 December 2024 diff hist +383‎ Normalized 2-cocycle for trivial group action ‎ →‎Equivalent definitions in tabular format
• 20:2120:21, 7 December 2024 diff hist +485‎ IIP 2-cocycle for trivial group action ‎No edit summary current
• 20:1820:18, 7 December 2024 diff hist +63‎ Normalized 2-cocycle for trivial group action ‎ →‎Putting together 2-coboundaries, normalized 2-cocycles, and cocycles
• 20:1520:15, 7 December 2024 diff hist +260‎ Normalized 2-cocycle for trivial group action ‎ →‎Putting together 2-coboundaries, normalized 2-cocycles, and cocycles
• 20:1320:13, 7 December 2024 diff hist −235‎ IIP 2-cocycle for trivial group action ‎ →‎Case that G has no element of order two
• 20:1220:12, 7 December 2024 diff hist −5‎ IIP 2-cocycle for trivial group action ‎ →‎Case that G has no element of order two
• 20:1120:11, 7 December 2024 diff hist +1‎ IIP 2-cocycle for trivial group action ‎ →‎Equivalence of definitions
• 20:1020:10, 7 December 2024 diff hist +40‎ IIP 2-cocycle for trivial group action ‎No edit summary
• 20:0820:08, 7 December 2024 diff hist +141‎ 2-cocycle for trivial group action is symmetric between element and inverse ‎No edit summary current
• 20:0720:07, 7 December 2024 diff hist +102‎ 2-cocycle for trivial group action is constant on axes ‎No edit summary current
• 20:0620:06, 7 December 2024 diff hist +2‎ IIP 2-cocycle for trivial group action ‎ →‎Importance
• 20:0520:05, 7 December 2024 diff hist +2,031‎ IIP 2-cocycle for trivial group action ‎ →‎Importance
• 19:5219:52, 7 December 2024 diff hist +9‎ IIP 2-cocycle for trivial group action ‎ →‎Importance
• 19:4819:48, 7 December 2024 diff hist +29‎ IIP 2-cocycle for trivial group action ‎ →‎Converting a 2-cocycle to an equivalent IIP 2-cocycle (differing by a 2-coboundary)
• 19:4719:47, 7 December 2024 diff hist +7‎ IIP 2-cocycle for trivial group action ‎ →‎Case of 2-divisible base
• 19:4719:47, 7 December 2024 diff hist +3,362‎ IIP 2-cocycle for trivial group action ‎ →‎Importance
• 19:3219:32, 7 December 2024 diff hist +249‎ Normalized 2-cocycle for trivial group action ‎ →‎Normalizing a 2-cocycle
• 19:2619:26, 7 December 2024 diff hist −1‎ Normalized 2-cocycle for trivial group action ‎ →‎Translation normalization
• 19:2619:26, 7 December 2024 diff hist +471‎ Normalized 2-cocycle for trivial group action ‎ →‎Normalizing a 2-cocycle
• 19:2319:23, 7 December 2024 diff hist +219‎ Normalized 2-cocycle for trivial group action ‎ →‎Relation with treatment as central extensions
• 19:2219:22, 7 December 2024 diff hist +2,318‎ IIP 2-cocycle for trivial group action ‎No edit summary
• 19:1719:17, 7 December 2024 diff hist 0‎ Normalized 2-cocycle for trivial group action ‎ →‎Relation with treatment as central extensions
• 19:1619:16, 7 December 2024 diff hist +4‎ Normalized 2-cocycle for trivial group action ‎ →‎Relation with treatment as central extensions
• 19:1319:13, 7 December 2024 diff hist −116‎ Normalized 2-cocycle for trivial group action ‎ →‎Relation with treatment as central extensions
• 19:1219:12, 7 December 2024 diff hist +38‎ Normalized 2-cocycle for trivial group action ‎ →‎Relation with treatment as central extensions
• 19:1119:11, 7 December 2024 diff hist −415‎ IIP 2-cocycle for trivial group action ‎ →‎Definition
• 19:0819:08, 7 December 2024 diff hist −9‎ Normalized 2-cocycle for trivial group action ‎ →‎Proof of equivalence of definitions
• 19:0219:02, 7 December 2024 diff hist +51‎ Normalized 2-cocycle for trivial group action ‎ →‎Putting together 2-coboundaries, normalized 2-cocycles, and cocycles
• 19:0219:02, 7 December 2024 diff hist +1,515‎ Normalized 2-cocycle for trivial group action ‎ →‎Putting together 2-coboundaries, normalized 2-cocycles, and cocycles
• 18:4118:41, 7 December 2024 diff hist +719‎ Normalized 2-cocycle for trivial group action ‎ →‎Quotient group of 2-cocycles by normalized 2-cocycles is the base group; in fact, a short exact sequence
• 18:3318:33, 7 December 2024 diff hist +75‎ Normalized 2-cocycle for trivial group action ‎ →‎Importance
• 18:3018:30, 7 December 2024 diff hist +31‎ Normalized 2-cocycle for trivial group action ‎ →‎Definition
• 18:3018:30, 7 December 2024 diff hist −548‎ Normalized 2-cocycle for trivial group action ‎ →‎Definition
• 18:2418:24, 7 December 2024 diff hist −3‎ 2-cocycle for trivial group action ‎ →‎Stronger properties
• 18:1918:19, 7 December 2024 diff hist +2,270‎ N 2-cocycle for trivial group action is symmetric between element and inverse ‎ Created page with "==Statement== Suppose <math>G</math> is a group and <math>A</math> is an abelian group. Suppose <math>f:G \times G \to A</math> is a 2-cocycle for trivial group action of <math>G</math> on <math>A</math>. In other words, <math>f</math> satisfying the following condition (that we will refer to as the 2-cocycle identity): <math>f(g,hk) + f(h,k) = f(gh,k) + f(g,h) \ \forall \ g,h,k, \in G</math> Then, if w..."
• 18:1718:17, 7 December 2024 diff hist +12‎ 2-cocycle for trivial group action is constant on axes ‎ →‎First part
• 18:1718:17, 7 December 2024 diff hist +3‎ 2-cocycle for trivial group action is constant on axes ‎No edit summary