  Algebraic operads provide a powerful tool to understand the homotopy theory
of the types of (co)algebras they encode. So far, the principal results and
methods that this theory provides were only available in characteristic zero.
The reason is that operads carry an action of all the symmetric groups, whose
representation theory becomes much more involved in positive characteristic.
The goal of this paper is to extend these results and methods to a positive
characteristic setting. We solve the main problems that appear in this new
setting by using the notion of a quasi-planar cooperad as the building block of
the theory.
