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A note on cusp forms and representations of SL2(𝔽𝑝)
Journal of Group Theory ( IF 0.4 ) Pub Date : 2021-03-01 , DOI: 10.1515/jgth-2019-0189 Zhe Chen 1
Journal of Group Theory ( IF 0.4 ) Pub Date : 2021-03-01 , DOI: 10.1515/jgth-2019-0189 Zhe Chen 1
Affiliation
Cusp forms are certain holomorphic functions defined on the upper half-plane, and the space of cusp forms for the principal congruence subgroup Γ(p){\Gamma(p)}, p a prime, is acted on by SL2(𝔽p){\mathrm{SL}_{2}(\mathbb{F}_{p})}. Meanwhile, there is a finite field incarnation of the upper half-plane, the Deligne–Lusztig (or Drinfeld) curve, whose cohomology space is also acted on by SL2(𝔽p){\mathrm{SL}_{2}(\mathbb{F}_{p})}. In this note, we compute the relation between these two spaces in the weight 2 case.
中文翻译:
关于SL2(𝔽𝑝)的尖角形式和表示的注释
尖峰形式是在上半平面上定义的某些全纯函数,并且主要同余子组Γ(p){\ Gamma(p)}(prime素)的尖峰形式的空间受SL2(𝔽p)的作用{\ mathrm {SL} _ {2}(\ mathbb {F} _ {p})}。同时,上半平面的有限场化身为Deligne-Lusztig(或Drinfeld)曲线,其同调空间也受SL2(𝔽p){\ mathrm {SL} _ {2}(\ mathbb {F} _ {p})}。在本说明中,我们在权重为2的情况下计算这两个空间之间的关系。
更新日期:2021-03-16
中文翻译:
关于SL2(𝔽𝑝)的尖角形式和表示的注释
尖峰形式是在上半平面上定义的某些全纯函数,并且主要同余子组Γ(p){\ Gamma(p)}(prime素)的尖峰形式的空间受SL2(𝔽p)的作用{\ mathrm {SL} _ {2}(\ mathbb {F} _ {p})}。同时,上半平面的有限场化身为Deligne-Lusztig(或Drinfeld)曲线,其同调空间也受SL2(𝔽p){\ mathrm {SL} _ {2}(\ mathbb {F} _ {p})}。在本说明中,我们在权重为2的情况下计算这两个空间之间的关系。