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Extremal potentials and equilibrium measures for collections of Kähler classes

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Abstract

Given a collection of Kähler forms and a continuous weight on a compact complex manifold we show that it is possible to define natural new notions of extremal potentials and equilibrium measures which coincide with classical notions when the collection is a singleton. We prove two regularity results and set up a variational framework. Applications to sampling of holomorphic sections are treated elsewhere.

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Acknowledgements

The author would like to thank Nick McCleerey and Tàmas Darvas for very valuable input and for reading and commenting on a draft of this paper. Special thanks to Nick McCleerey for spotting an error in the proof of Lemma 1. The author also thanks the Knut and Alice Wallenberg Foundation (Grant 2018-0357) and BSF (Grant 2016173).

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Correspondence to Jakob Hultgren.

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Hultgren, J. Extremal potentials and equilibrium measures for collections of Kähler classes. Math. Z. 301, 1555–1571 (2022). https://doi.org/10.1007/s00209-021-02964-8

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  • DOI: https://doi.org/10.1007/s00209-021-02964-8

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