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9 votes
1 answer
457 views

Deformations of Ext rings

Let $k$ be a base ring and $k[x]$ the ring of polynomials in an indeterminate $x$ over $k$. Consider a (not necessarily commutative) algebra $A$ over $k[x]$ and two $A$-modules $M$ and $N$. Then for ...
Craig Westerland's user avatar
7 votes
0 answers
220 views

Cohomology of little disks and dg algebras over $\mathbb{F}_p$

This a alternative form of the question I posted some time ago. We, the people who don't know topology, are told that in characteristic p the formalizm of DG algebras is not quite adequate for ...
Vladimir Baranovsky's user avatar
2 votes
0 answers
84 views

Infinity-morphisms for operadic algebras

Is there an already studied notion of $\infty$-morphism between algebras over a quasi-free operad $P = (T(E), \partial)$? If the operad $P$ is Koszul, or of the form $\Omega C$ for $C$ a cooperad, ...
groupoid's user avatar
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