Convolution estimates and the Gross-Pitaevskii hierarchy

Extensions to higher-dimensions are given for a convolution estimate used by Klainerman and Machedon in their study of uniqueness of solutions for the Gross-Pitaevskii hierarchy. Such estimates determine more general forms of Stein-Weiss integrals involving restriction to smooth submanifolds.Comment: AMSLaTeX, 10 pages, expanded materia