Estimates for smooth absolutely minimizing Lipschitz extensions.

Estimates for smooth absolutely minimizing Lipschitz extensions.
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发表时间:
1993
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通讯作者:
L. Evans
L. Evans
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其他
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作者:
L. Evans

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我提出了一些基本的最大值原理的论点,建立内部梯度界和Harnack不等式为u和|杜|其中u是退化椭圆型偏微分方程的光滑解.这些计算特别地延伸到更高维度G。Aronsson的断言[2],即一个非常数的光滑解不可能有内部临界点。
I present some elementary maximum principle arguments, establishing interior gradient bounds and Harnack inequalities for both u and |Du|, where u is a smooth solution of the degenerate elliptic PDE ∆∞u = 0. These calculations in particular extend to higher dimensions G. Aronsson’s assertion [2] that a nonconstant, smooth solution can have no interior critical point.