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Timeline for Hopf algebras actions

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Nov 13 at 1:08 history bumped CommunityBot This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Jul 16 at 1:02 history bumped CommunityBot This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Apr 3 at 18:30 history edited David White CC BY-SA 4.0
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Apr 3 at 16:10 vote accept CommunityBot
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Apr 3 at 14:20 answer added David White timeline score: 0
Apr 3 at 8:56 review Close votes
Apr 9 at 3:03
Apr 3 at 8:25 history edited user525442 CC BY-SA 4.0
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Apr 3 at 8:19 history edited user525442 CC BY-SA 4.0
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Apr 3 at 8:18 comment added user525442 Can you please tell me if now the question is clear?
Apr 3 at 8:18 history edited user525442 CC BY-SA 4.0
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Apr 3 at 8:16 comment added user525442 Starting from the definitions of group actions (or monoid actions), how do you justify the name "action" for hopf algebra actions.
Apr 3 at 8:01 comment added user525442 J. De Ro that's exactly why I've asked the questions David White mentions. I'm trying to reduce of hopf algebras to groups to make sense of them...
Apr 3 at 7:57 comment added user525442 I understand that one can define variuos things arbitrarily and ask questions about it... however the only type of action worth studying for me are group actions (maybe also monoid actions). What's the core of all the types of actions?
Apr 3 at 7:53 comment added J. De Ro Action of a Hopf algebra on what? Since you are asking about group actions, I am thinking that you actually mean to ask about coactions instead of actions.
Apr 3 at 7:45 history edited YCor CC BY-SA 4.0
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Apr 3 at 7:44 comment added David White This is well-known, see, e.g., sciencedirect.com/science/article/pii/0021869386900827, or in braided categories: arxiv.org/abs/1811.10528
Apr 3 at 7:44 comment added David White Hi. I just answered your other question: mathoverflow.net/q/468267/11540. Generally, it's not good practice to ask back-to-back questions. It's better to learn from what the answer to the first question and maybe you won't need to ask the second question at all! Like groups and cogroups, you can encode what it means to be a Hopf algebra diagrammatically. Anyway, I for one cannot tell what this question is asking. Can you clarify at all? What do you mean "write down a general type of hopf algebra actions"? Yes, a Hopf algebra $H$ can act on an $H$-algebra module $A$.
S Apr 3 at 7:37 review First questions
Apr 3 at 8:35
S Apr 3 at 7:37 history asked user525442 CC BY-SA 4.0