The Riesz Transform on Intrinsic Lipschitz Graphs in the Heisenberg Group
<p> We prove that the Heisenberg Riesz transform is unbounded in <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper L 2"> <mml:semantics> <mml:...