Abstract
We present a dictionary between arithmetic geometry of toric varieties and convex analysis. This correspondence allows for effective computations of arithmetic invariants of these varieties. In particular, combined with a closed formula for the integration of a class of functions over polytopes, it gives a number of new values for the height (arithmetic analog of the degree) of toric varieties, with respect to interesting metrics arising from polytopes. In some cases these heights are interpreted as the average entropy of a family of random processes.
Burgos was partially supported by the MINECO research project MTM2013-42135-P. Philippon was partially supported by the CNRS project PICS “Géométrie diophantienne et calcul formel” and the ANR research project “Hauteurs, modularité, transcendance”. Sombra was partially supported by the MINECO research project MTM2012-38122-C03-02.
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© 2015 Springer International Publishing Switzerland
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Burgos Gil, J.I., Philippon, P., Sombra, M. (2015). Heights of Toric Varieties, Entropy and Integration over Polytopes. In: Nielsen, F., Barbaresco, F. (eds) Geometric Science of Information. GSI 2015. Lecture Notes in Computer Science(), vol 9389. Springer, Cham. https://doi.org/10.1007/978-3-319-25040-3_32
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DOI: https://doi.org/10.1007/978-3-319-25040-3_32
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