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math.CA2018
Multiparameter singular integrals on the Heisenberg group: uniform estimates
Marco Vitturi, James Wright
We consider a class of multiparameter singular Radon integral operators on the Heisenberg group where the underlying variety is the graph of a polynomial. A remarka…
math.CA2018
A bilinear Rubio de Francia inequality for arbitrary rectangles
Frédéric Bernicot, Marco Vitturi
Let be a collection of disjoint dyadic rectangles with sides parallel to the axes, let denote the non-smooth bilinear projection onto \[ π_R (f,g)(x):=\…