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16 votes
1 answer
675 views

What is this operad-like structure called?

functors $O(n)\colon C\times\stackrel{n}\cdots\times C\rightarrow C$ equipped with natural transformations $O(n)(O(p_1),\dots,O(p_n))\Rightarrow O(p_1+\cdots + p_n)$ satisfying the usual relations (as for operads
Fernando Muro's user avatar
11 votes
1 answer
276 views

Infinity-homotopies

Koszul duality for operads allows for straightforward generalizations of $A$-infinity algebras and $A$-infinity morphisms for the so called Koszul operads $\mathcal{O}$, among which we find the associative … Ideally, for Koszul operads over an arbitrary commutative ground ring, but anything is welcome. …
Fernando Muro's user avatar
15 votes
1 answer
698 views

Homotopy transfer in the opposite direction

Let $X\rightleftarrows Y\circlearrowleft$ be a strong deformation retraction of chain complexes (a.k.a. contraction), i.e. $X\rightarrow Y\rightarrow X$ is the identity, $Y\rightarrow Y$ is a homotopy …
Fernando Muro's user avatar