Generalized free time-dependent Schr\"odinger equation with initial data   in Fourier Lebesgue spaces
  Consider the solution of the free time-dependent Schr\"odinger equation with initial data f. It is shown by Sj\"ogren and Sj\"olin (1989) that there exists f in the Sobolev space H^s(R^d), s=d/2 such that tangential convergence can not be widened to convergence regions. In 2010 we obtained the corresponding results for a generalized version of the Schr\"odinger equation, where -\Delta_x is replaced by an operator \phi(D), with special conditions on \phi. In this paper we show that similar results may be obtained for initial data in Fourier Lebesgue spaces. 
Karoline Johansson
math.AP