Authors: Keith M Rogers
Publish Date: 2008/09/18
Volume: 343, Issue: 3, Pages: 603-
Abstract
We consider the Schrödinger operator eitDelta acting on initial data f in dotHs We show that an affirmative answer to a question of Carleson concerning the sharp range of s for which lim tto 0eitDeltafx=fx ae xin mathbb Rn would imply an affirmative answer to a question of Planchon concerning the sharp range of q and r for which eitDelta is bounded in L xqmathbb RnLr tmathbb R When n = 2 we unconditionally improve the range for which the mixed norm estimates hold
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