Model structure on commutative co-Segal dg-algebras in characteristic p>0
Abstract
We study weak commutative algebras in a symmetric monoidal model category M. We provide a model structure on these algebras for any symmetric monoidal model category that is combinatorial and left proper. Our motivation was to have a homotopy theory of weak commutative dg-algebras in characteristic p > 0, since there is no such theory for strict commutative dg-algebras. For a general M, we show that if the projective model structure on usual strict commutative algebras exists, then the inclusion from strict to weak algebras is a Quillen equivalence. The results of this paper can be generalized to symmetric co-Segal P-algebras for any operad P. And surprisingly, the axioms of a monoidal model category are not necessary to get the model structure on co-Segal commutative algebras.
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