Abstract:In this article we prove that the fractional integral operator associated to the Schrödinger second order differential operator L −α/2 = (−Δ + V ) −α/2 maps with continuity weak Lebesgue space L p,∞ (v) into weighted Campanato-Hölder type spaces BMO β L (w) , thus improving regularity under appropriate conditions on the pair of weights (v,w) and the parameters p , α and β . We also prove the continuous mapping from BMO β L (v) to BMO γ L (w) for adequate pair of weights. Our results improve those known for the… Show more
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