Timeline for Index of congruence modular subgroup of level (1,d)

16 events

when toggle format	what		by	license	comment
Nov 13, 2015 at 11:35	vote	accept	Puzzled
Jun 27, 2014 at 18:18	answer	added	Steffen Kionke		timeline score: 3
S Jun 25, 2014 at 21:59	history	bounty ended	CommunityBot
S Jun 25, 2014 at 21:59	history	notice removed	CommunityBot
Jun 18, 2014 at 6:31	comment	added	Puzzled		$A\equiv 0\: mod(D)$ means that $A = D\cdot B$ for some $B\in M_2(\mathbb{Z})$.
Jun 18, 2014 at 6:31	history	edited	Puzzled	CC BY-SA 3.0	added 89 characters in body
Jun 18, 2014 at 2:48	comment	added	Keerthi Madapusi		What does mod (D) mean?
Jun 18, 2014 at 2:15	history	edited	Stanley Yao Xiao	CC BY-SA 3.0	added 7 characters in body
Jun 17, 2014 at 22:07	comment	added	few_reps		(Now that I've seen the definition, I'm less sure ... but at least it should be a good point to start)
Jun 17, 2014 at 22:01	comment	added	few_reps		The strong approximation theorem shows that $Sp_{2n}(\mathbf Z)$ projects onto all quotients $Sp_{2n}(\mathbf Z/m)$. This implies your mod 2 reduction is onto (if I understand the question).
Jun 17, 2014 at 21:57	comment	added	Puzzled		I added the precise definition of $\Gamma_2(1,d)$ in the question.
Jun 17, 2014 at 21:53	history	edited	Puzzled	CC BY-SA 3.0	added 411 characters in body
Jun 17, 2014 at 21:00	comment	added	Keerthi Madapusi		What is the definition of $\Gamma_g(1,d)$?
S Jun 17, 2014 at 20:23	history	bounty started	IMeasy
S Jun 17, 2014 at 20:23	history	notice added	IMeasy		Draw attention
Jun 6, 2014 at 9:50	history	asked	Puzzled	CC BY-SA 3.0