Comments on: The cartographers’ groups

By: Galois’ last letter | neverendingbooks

Galois’ last letter | neverendingbooks — Tue, 07 Dec 2010 13:01:35 +0000

[...] Let and consider for the involutions on (on which acts via Moebius transformations) [...]

By: balm or poison | neverendingbooks

balm or poison | neverendingbooks — Tue, 08 Jan 2008 07:20:53 +0000

[...] don’t try to follow the suggestions of my Tracks post. It certainly is not enough to get tracks running under Tiger (and probably also not under Panther [...]

By: permutation representations of monodromy groups at neverendingbooks

permutation representations of monodromy groups at neverendingbooks — Thu, 27 Dec 2007 14:25:05 +0000

[...] we will explain how curves defined over determine permutation representations of the carthographic groups. We have seen that any smooth projective curve (a Riemann surface) defined over the algebraic [...]

By: the cartographers' groups (2) at neverendingbooks

the cartographers' groups (2) at neverendingbooks — Wed, 26 Dec 2007 20:31:59 +0000

[...] there is a drastic shortcut to the general tree-argument of last time, due to Roger Alperin. Recall that the Moebius transformations corresponding to u resp. v send z [...]