12 Mar
1992
12 Mar
'92
10:28 p.m.
If A is Hopf, then Ext_A(k,k) is graded commutative what is the earliest or best PUBLISHED proof? =====================================================================
12582
Age (days ago)
12582
Last active (days ago)
0 comments
1 participants
participants (1)
-
James Stasheff