cohomology

### Theorems

#### Higher algebra

higher algebra

universal algebra

# Contents

## Idea

Operads – or rather (∞,1)-operads such as given by topological operads or dendroidal sets – form an (∞,1)-category, and hence there is canonically a notion of cohomology associated with them, given as the sets of homotopy classes of morphisms out of a given operad into a given coefficient operad.

Explicitly this has been considered in (Rezk).

## References

• Charles Rezk, Spaces of algebra structures and cohomology of operads PhD thesis (1996) (dvi)
Created on November 9, 2011 18:52:44 by Urs Schreiber (131.174.41.104)