Paraproducts with Flag Singularities I. a Case Study
نویسنده
چکیده
In this paper we prove L estimates for a tri-linear operator, whose symbol is given by the product of two standard symbols, satisfying the well knownMarcinkiewiczHörmander-Mihlin condition. Our main result contains in particular the classical CoifmanMeyer theorem. This tri-linear operator is the simplest example of a large class of multilinear operators, which we called paraproducts with flag singularities.
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