real Monge-Ampere equation;
Aleksandrov's solutions;
doubling measures;
strict convexity;
spaces of homogenous type;
D O I:
10.1090/S0002-9947-00-02491-0
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
In this paper we establish several geometric properties of the cross sections of generalized solutions phi to the Monge-Ampere equation det D-2 phi = mu, when the measure mu satisfies a doubling property. A main result is a characterization of the doubling measures mu in terms of a geometric property of the cross sections of phi. This is used to obtain estimates of the shape and invariance properties of the cross sections that are valid under appropriate normalizations.
机构:
Jagiellonian Univ, Fac Math & Comp Sci, Ul Lojasiewicza 6, PL-30348 Krakow, PolandJagiellonian Univ, Fac Math & Comp Sci, Ul Lojasiewicza 6, PL-30348 Krakow, Poland
机构:
TUBITAK, Marmara Res Ctr, Res Inst Basic Sci, Dept Phys, TR-11470 Gebze, TurkeyTUBITAK, Marmara Res Ctr, Res Inst Basic Sci, Dept Phys, TR-11470 Gebze, Turkey
Nutku, Y
Sheftel, MB
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机构:TUBITAK, Marmara Res Ctr, Res Inst Basic Sci, Dept Phys, TR-11470 Gebze, Turkey
Sheftel, MB
Malykh, AA
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机构:TUBITAK, Marmara Res Ctr, Res Inst Basic Sci, Dept Phys, TR-11470 Gebze, Turkey
Malykh, AA
Winternitz, P
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机构:TUBITAK, Marmara Res Ctr, Res Inst Basic Sci, Dept Phys, TR-11470 Gebze, Turkey