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
中科院分区:
文献类型:
--
作者:
Z. Buczolich
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.