The Convexity Estimates for the Solutions of Two Elliptic Equations
The Convexity Estimates for the Solutions of Two Elliptic Equations
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两个椭圆方程解的凸性估计
DOI:
10.1080/03605302.2012.727129
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发表时间:
2012-01
影响因子:
1.9
通讯作者:
Ye, Yu
中科院分区:
文献类型:
--
作者:
Ma, Xi-Nan;Shi, Shujun;Ye, Yu
In this paper, for the solutions of two elliptic equations we find the auxiliary curvature functions which attain respective minimum on the boundary. These results are the generalization of the classical ones in Makar-Limanov [17] for the torsion equation and Acker et al. [1] for the first eigenfunction of the Laplacian in convex domains of dimension 2. Then we get the new proof of the specific convexity of the solutions of the above two elliptic equations. As a consequence, for the elliptic equation vΔv = − (1 + |∇v|2) in a smooth, bounded and strictly convex domain Ω in ℝ n with homogeneous Dirichlet boundary value condition, we also get a sharply lower bound estimate of the Gaussian curvature for the solution surface by the curvature of the boundary of the domain.
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DOI:
10.1007/bfb0075060
发表时间:
1985-10
期刊:
--
影响因子:
--
作者:
B. Kawohl
通讯作者:
B. Kawohl
DOI:
10.1007/bf01405053
发表时间:
1971
期刊:
Mathematical notes of the Academy of Sciences of the USSR
影响因子:
--
作者:
L. Makar-Limanov
通讯作者:
L. Makar-Limanov
影响因子:
3.9
作者:
B. Andrews;J. Clutterbuck
通讯作者:
B. Andrews;J. Clutterbuck
影响因子:
1.7
作者:
H. J. Brascamp;E. Lieb
通讯作者:
H. J. Brascamp;E. Lieb
影响因子:
2.5
作者:
L. Caffarelli;A. Friedman
通讯作者:
L. Caffarelli;A. Friedman