Solution to the gradient problem of C. E. Weil

Solution to the gradient problem of C. E. Weil
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C. E. Weil 梯度问题的解决方案

DOI:
10.4171/rmi/439
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发表时间:
2005
影响因子:
1.2
通讯作者:
Z. Buczolich
Z. Buczolich
中科院分区:
数学2区
文献类型:
--
作者:
Z. Buczolich

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本文给出了C. E.好吧在一个开集G I R 2,我们构造一个可微函数f:G?R存在一个开集O 1 I R 2,使得对于p I G,Nf(p)I O 1,但对于几乎每个q I G,Nf(q)I O 1.这表明Denjoy-Clarkson性质在更高的维度中不成立。
In this paper we give a complete answer to the famous gradient problem of C. E. Weil. On an open set G I R2 we construct a differentiable function f: G ? R for which there exists an open set O1 I R2 such that Nf(p) I O1 for a p I G but Nf(q) I O1 for almost every q I G. This shows that the Denjoy-Clarkson property does not hold in higher dimensions.