Reductions of Galois representations of slope 3 2

We prove a zig-zag conjecture describing the reductions of irreducible crystalline two-dimensional representations of GQp of slope 3 2 and exceptional weights. This, along with previous works, completes the description of the reduction for all slopes less than 2. The proof involves computing the reductions of the Banach spaces attached by the p-adic Local Langlands Correspondence (LLC) to these representations, followed by an application of the mod p LLC to recover the reductions of these representations.

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Publication Details

Journal
Kyoto journal of mathematics
Published
2025-05-22
DOI
https://doi.org/10.1215/21562261-2024-0022
Citations
2
Primary Topic
Algebraic Geometry and Number Theory
Type
article
Field-Weighted Citation Impact
8.18
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article

Reductions of Galois representations of slope 3 2

Vivek Rai, Eknath Ghate
2 citations
Kyoto journal of mathematics
Algebraic Geometry and Number Theory
8.18
article

Reductions of Galois representations of slope 3 2

Vivek Rai, Eknath Ghate
article en
2 citations

Abstract

We prove a zig-zag conjecture describing the reductions of irreducible crystalline two-dimensional representations of GQp of slope 3 2 and exceptional weights. This, along with previous works, completes the description of the reduction for all slopes less than 2. The proof involves computing the reductions of the Banach spaces attached by the p-adic Local Langlands Correspondence (LLC) to these representations, followed by an application of the mod p LLC to recover the reductions of these representations.

Kyoto journal of mathematicsVol. 65(3)
Tata Institute of Fundamental Research (IN), Indian Institute of Science Education and Research Pune (IN)
Openalex Percentile: Top 3%
Algebraic Geometry and Number Theory
8.18
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