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Estimates for Bergman Projections in Bounded Symmetric Domains of Tube Type |
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Authors: | Aline Bonami Gustavo Garrigós Cyrille Nana |
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Institution: | 1. MAPMO, Université d’Orléans, BP 6759, 45067, Orléans, France 2. Dep. Matemáticas, Universidad de Murcia, 30100, Murcia, Spain 3. Dpt. of Mathematics, University of Buea, P.O. Box 63, Buea, Cameroon
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Abstract: | Let D be an irreducible bounded symmetric domain of tube type in ? n . The class of Bloch functions is well known in this context, in connection with Hankel operators or duality of Bergman spaces. Contrary to what happens in the unit ball, Bloch functions do not belong to all Lebesgue spaces L p (D) for p<∞ in higher rank. We give here both necessary and sufficient conditions on p for such an embedding. This question is equivalent to local boundedness properties of the Bergman projection in the tube domain over a symmetric cone that is conformally equivalent to D. We are linked to consider L ∞–L q inequalities on symmetric cones, which may be of independent interest, and study more systematically estimates with loss for the Bergman projection. The proofs are based on a very precise estimate on an integral related to the Gamma function of a symmetric cone. |
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