𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Normalisers of Subgroups of the Modular Group

✍ Scribed by Mong Lung Lang

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
132 KB
Volume
248
Category
Article
ISSN
0021-8693

No coin nor oath required. For personal study only.

✦ Synopsis

Let G be a subgroup of finite index of the modular group and let N G be the normaliser of G in PSL 2

. In this article, we give an algorithm that determines N G .

πŸ“œ SIMILAR VOLUMES

Fake Congruence Modular Curves and Subgr
Fake Congruence Modular Curves and Subgroups of the Modular Group
✍ Gabriel Berger πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 164 KB

We construct a special class of noncongruence modular subgroups and curves, analogous in some ways to the usual congruence ones. The subgroups are obtained via the Burau representation, and the associated quotient curves have a natural moduli space interpretation. In fact, they are reduced Hurwitz s

Modular Invariants of Parabolic Subgroup
Modular Invariants of Parabolic Subgroups of General Linear Groups
✍ Pham Anh Minh; VΓ΅ Thanh TΓΉng πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 96 KB

Let p be a prime number and let A be an elementary abelian p-group of rank m. The purpose of this paper is to determine a full system for the invariants of Ε½ . Ε½ . parabolic subgroups of the general linear group GL m, ‫ކ‬ in H \* A, ‫ކ‬ . A p p relation between these invariants and Dickson ones is a

Subgroups of the Nottingham Group
Subgroups of the Nottingham Group
✍ Rachel Camina πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 214 KB
Symmetric Powers of Modular Representati
Symmetric Powers of Modular Representations for Groups with a Sylow Subgroup of Prime Order
✍ Ian Hughes; Gregor Kemper πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 207 KB

Let V be a representation of a finite group G over a field of characteristic p. If p does not divide the group order, then Molien's formula gives the Hilbert series of the invariant ring. In this paper we find a replacement of Molien's formula which works in the case that G is divisible by p but not