Complex varieties and higher integrability of Dir-minimizing Q-valued functions |
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Authors: | Emanuele Nunzio Spadaro |
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Institution: | 1. Hausdorff Center for Mathematics, Universit?t Bonn, Bonn, Germany
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Abstract: | We provide new elementary proofs of the following two results: every complex variety is locally the graph of a Dir-minimizing function, first proved by Almgren (Almgren’s big regularity paper, volume 1 of World Scientific Monograph Series in Mathematics, 2000); the gradients of Dir-minimizing functions, in principle square-summable, are p-integrable for some p > 2, proved by De Lellis and Spadaro (Higher integrability and approximation of minimal currents, 2009). In the planar case, we prove that our integrability exponents are optimal. |
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