Polya's inequalities, global uniform integrability and the size of plurisubharmonic lemniscates |
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Authors: | Slimane Benelkourchi Bensalem Jennane Ahmed Zeriahi |
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Affiliation: | (1) Faculté des Sciences de Rabat-Agdal, Université Mohammed V, BP. 1014, Rabat, Morocco;(2) Present address: Université Paul Sabatier-Toulouse 3, Institut de Mathématiques UMR-CNRS 5580, 118, Route de Narbonne, FR-31062 Toulouse, France |
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Abstract: | First we prove a new inequality comparing uniformly the relative volume of a Borel subset with respect to any given complex euclidean ballB⊂C n with its relative logarithmic capacity inC n with respect to the same ballB. An analogous comparison inequality for Borel subsets of euclidean balls of any generic real subspace ofC n is also proved. Then we give several interesting applications of these inequalities. First we obtain sharp uniform estimates on the relative size of plurisubharmonic lemniscates associated to the Lelong class of plurisubharmonic functions of logarithmic singularities at infinity onC n as well as the Cegrell class of plurisubharmonic functions of bounded Monge-Ampère mass on a hyperconvex domain Ω⊂(C n . Then we also deduce new results on the global behaviour of both the Lelong class and the Cegrell class of plurisubharmonic functions. This work was partially supported by the programmes PARS MI 07 and AI.MA 180. |
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