Comments on: The best rejected proposal ever

By: what does the monster see? | neverendingbooks

what does the monster see? | neverendingbooks — Tue, 07 Dec 2010 12:52:21 +0000

[...] edge in cut in two by a blue geodesic). They are exactly #Monster such half-edges and they form a dessin d’enfant for the [...]

By: noncommutative F_un geometry (1) | neverendingbooks

noncommutative F_un geometry (1) | neverendingbooks — Tue, 07 Dec 2010 12:18:00 +0000

[...] a previous life, I’ve written a series of posts on dessins d’enfants, so I’ll restrict here to the basics. A smooth projective -curve [...]

By: permutation representations of monodromy groups | neverendingbooks

permutation representations of monodromy groups | neverendingbooks — Wed, 02 Jan 2008 19:14:57 +0000

[...] geometry and groups Digg This [?] Table of contents for Dessins d’enfantsMonsieur MathieuThe best rejected proposal everThe cartographers’ groupsthe cartographers’ groups (2)the noncommutative manifold of a [...]

By: noncommutative curves and their maniflds | neverendingbooks

noncommutative curves and their maniflds | neverendingbooks — Wed, 02 Jan 2008 19:14:40 +0000

[...] Categories: geometry Digg This [?] Table of contents for Dessins d’enfantsMonsieur MathieuThe best rejected proposal everThe cartographers’ groupsthe cartographers’ groups (2)the noncommutative manifold of a [...]

By: recycled : dessins at neverendingbooks

recycled : dessins at neverendingbooks — Thu, 27 Dec 2007 14:57:01 +0000

[...] The best rejected proposal ever on Grothendieck’s programme and Belyi maps. [...]

By: anabelian geometry at neverendingbooks

anabelian geometry at neverendingbooks — Thu, 27 Dec 2007 11:42:25 +0000

[...] Last time we saw that a curve defined over gives rise to a permutation representation of or one of its subgroups (of index 2) or (of index 6). As the corresponding monodromy group is finite, this representation factors through a normal subgroup of finite index, so it makes sense to look at the profinite completion of , which is the inverse limit of finite groups where N ranges over all normalsubgroups of finite index. These profinte completions are horrible beasts even for easy groups such as . Its profinite completion is [...]