We show that Comm(K) = Aut(K) = Mod(S), where K is the subgroup of the mapping class group Mod(S) generated by twists about separating simple closed curves. In particular, this verifies a conjecture of Farb.
Thursday, April 15, 2004 - 4:30pm
Cornell
We show that Comm(K) = Aut(K) = Mod(S), where K is the subgroup of the mapping class group Mod(S) generated by twists about separating simple closed curves. In particular, this verifies a conjecture of Farb.