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S Jul 14, 2022 at 18:21 history suggested Samuel Adrian Antz CC BY-SA 4.0
Added \operatorname to GL and added missing \mathbb to one Z.
Jul 14, 2022 at 16:41 review Suggested edits
S Jul 14, 2022 at 18:21
Aug 17, 2020 at 8:38 comment added A Stasinski @Asvin I have fixed the links in that question.
Aug 17, 2020 at 6:06 comment added Asvin @AStasinski Could you please tell me which paper of Onn the linked quesion refers to? The link there no longer seems to be working.
Aug 13, 2020 at 10:57 comment added A Stasinski You can find further references in the answers to this question: mathoverflow.net/q/87254/2381. For the dimensions and multiplicities for $\mathrm{GL}_2$, Onn's paper is a convenient reference. As far as I know, the case $\mathrm{PGL}_2$ has not been written down (and may require $p>2$ to be manageable). I don't think anyone has studied the minimal fields of definition.
Aug 12, 2020 at 21:33 comment added Asvin Thank you, I will take a look at the references and see if it helps in my case!
Aug 12, 2020 at 21:26 comment added Kimball And related for $\mathbb Z_\ell$: mathoverflow.net/q/89184/6518 (I think there are other related questions on this site but can't find them now)
Aug 12, 2020 at 21:25 comment added Kimball The case of $n=p$ is of course well known, e.g., Piatetskii-Shapiro's book. For n squarefree, you can write GL(2,n) as a product of GL(2,p)'s. Similarly, you can reduce to the case of GL(2) over $\mathbb Z/p^r \mathbb Z$, if this helps.
Aug 12, 2020 at 19:44 comment added AlexIvanov You might try to look at arxiv.org/pdf/0807.4684.pdf Also, it should be worth to take a look at other related articles of Stasinski. Also, you may find some relevant information in the book of Bushnell--Henniart, "The Local Langlands conjecture for $GL_2$"
Aug 12, 2020 at 16:36 history asked Asvin CC BY-SA 4.0