dorsal/arxiv
View SchemaMod $p$ Iwasawa algebras of pro-$p$ Iwahori subgroups
| Authors | Rudy Ariaz, Steven Creech, Bryan Hu, Simran Khunger, Karol Koziol, Bharatha Rankothge, Bobby Zixuan Zhang |
|---|---|
| Categories | |
| ArXiv ID | 2601.09021vv1 |
| URL | https://arxiv.org/abs/2601.09021 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
Suppose $F$ is a finite unramified extension of $\mathbb{Q}_p$, and $G$ is the group of $F$-points of a split, connected, reductive group over $F$. Under a natural restriction on $p$, we determine the structure of the graded mod $p$ Iwasawa algebra $\textrm{gr}_{\mathfrak{m}}(\mathbb{F}_p [\![ I]\!])$, where $I$ is a pro-$p$ Iwahori subgroup of $G$. We also determine its maximal commutative quotient, and relate these results to Gelfand--Kirillov dimensions of smooth mod $p$ representations of $G$.
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"abstract": "Suppose $F$ is a finite unramified extension of $\\mathbb{Q}_p$, and $G$ is the group of $F$-points of a split, connected, reductive group over $F$. Under a natural restriction on $p$, we determine the structure of the graded mod $p$ Iwasawa algebra $\\textrm{gr}_{\\mathfrak{m}}(\\mathbb{F}_p [\\![ I]\\!])$, where $I$ is a pro-$p$ Iwahori subgroup of $G$. We also determine its maximal commutative quotient, and relate these results to Gelfand--Kirillov dimensions of smooth mod $p$ representations of $G$.",
"arxiv_id": "2601.09021",
"authors": [
"Rudy Ariaz",
"Steven Creech",
"Bryan Hu",
"Simran Khunger",
"Karol Koziol",
"Bharatha Rankothge",
"Bobby Zixuan Zhang"
],
"categories": [
"math.RT",
"math.NT"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Mod $p$ Iwasawa algebras of pro-$p$ Iwahori subgroups",
"url": "https://arxiv.org/abs/2601.09021",
"version": "v1"
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