For an appropriate surface σ
in Rn, we prove that the multiple Hilbert transform along σ is a bounded operator on
Lp(Rn), for p sufficiently close to 2. Our analysis of this singular integral operator
proceeds via Fourier transform techniques—that is, on the “multiplier side”—with
applications of Stein’s analytic interpolation theorem and the Marcinkiewicz
multiplier theorem. At the heart of our argument we have estimates of certain
trigonometric integrals.