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arXiv 1208.3605math.APmath.GT
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切点能量的正则性理论:非简并次临界情形

Regularity theory for tangent-point energies: The non-degenerate sub-critical case

Simon Blatt, Philipp Reiter

摘要:

在这篇文章中,我们介绍和研究一个新的双参数家庭的结能量$TP^{(p,q)}$,其中包含的切点能量。这些能量是通过在原定义的切点能量的被积函数的分子和分母的指数解耦。我们将首先刻画次临界范围内的有限能量曲线$p\in(q+2,2q+1)$,并看到它们都是Sobolev-Slobodeckik空间$W^{(p-1)/q,q}$中的内射和正则曲线。我们推导出一个公式的一阶变分,原来是一个非退化椭圆算子的特殊情况下$q=2$ --一个事实,似乎不是原来的切点能量的情况。这一观察使我们能够证明$TP^{(p,2)}$ + λ长度,$p\in(4,5)$,λ> 0的平稳点是光滑的-所以特别是所有局部极小点都是光滑的。

英文摘要:

In this article we introduce and investigate a new two-parameter family of knot energies $TP^{(p,q)}$ that contains the tangent-point energies. These energies are obtained by decoupling the exponents in the numerator and denominator of the integrand in the original definition of the tangent-point energies. We will first characterize the curves of finite energy in the sub-critical range $p\in(q+2,2q+1)$ and see that those are all injective and regular curves in the Sobolev-Slobodeckiĭ space $W^{(p-1)/q,q}$. We derive a formula for the first variation that turns out to be a non-degenerate elliptic operator for the special case $q=2$ --- a fact that seems not to be the case for the original tangent-point energies. This observation allows us to prove that stationary points of $TP^{(p,2)}$ + λlength, $p\in(4,5)$, λ> 0, are smooth --- so especially all local minimizers are smooth.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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