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math.CA2016
Single annulus estimates for the variation-norm Hilbert transforms along Lipschitz vector fields
Shaoming Guo
Let v be a planar Lipschitz vector field. We prove that the r-th variation-norm Hilbert transform along v, composed with a standard Littlewood-Paley projection operator P_k, is bou…
math.CA2016★ 14 cited
Schrödinger maximal function estimates via the pseudoconformal transformation
Ciprian Demeter, Shaoming Guo
We present an alternative way to recover the recent result from \cite{LR} using the pseudoconformal transformation.