欧几里得空间中的不可求长正规流
Unrectifiable normal currents in Euclidean spaces
摘要:
我们在$\mathbb{R}^{k+2}$中构造了一个$k$维简单正规流,它的支集是纯$2$ -不可求长的.结果是尖锐的,因为正常电流的支持不能是纯粹的$1$ -不可整流的,并且$(k+1)$维正常电流可以表示为$(k+1)$ -可整流电流的积分。这对Frank Morgan(1984)的一个问题(修订版)给出了否定的答案。
英文摘要:
We construct in $\mathbb{R}^{k+2}$ a $k$-dimensional simple normal current whose support is purely $2$-unrectifiable. The result is sharp because the support of a normal current cannot be purely $1$-unrectifiable and a $(k+1)$-dimensional normal current can be represented as an integral of $(k+1)$-rectifiable currents. This gives a negative answer to the (revised version) of a question of Frank Morgan (1984).
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