The aim of this sequel to arXiv:1812.02935 is to set up the cornerstones of
Koszul duality and Koszulity in the context of operads over a large class of
operadic categories. In particular, for these operadic categories we will study
concrete examples of binary quadratic operads, describe their Koszul duals and
prove that they are Koszul. This includes operads whose algebras are the most
important operad- and PROP-like structures such as the classical operads, their
variants such as cyclic, modular or wheeled operads, and also diverse versions
of PROPs such as properads, dioperads, 1/2PROPs, and still more exotic objects
such as permutads and pre-permutads.
Vladimir Dotsenko;Sergey Shadrin;Arkady Vaintrob;Bruno Vallette, 2024, Deformation theory of cohomological field theories, Journal für die reine und angewandte Mathematik (Crelles Journal), 0, 0, 10.1515/crelle-2023-0098, https://doi.org/10.1515/crelle-2023-0098.