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arXiv 2109.05064math.FAmath.CA
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分次群上的均值不等式与Sobolev空间的刻画

Mean Value Inequalities and Characterizations of Sobolev spaces on graded groups

Pablo De Nápoli, Rocío Díaz Martín

AI总结:

该研究在分次李群框架下,借助Littlewood-Paley平方函数与含二阶差分的Strichartz泛函刻画位势型Sobolev空间,同时从$L^p$空间和二阶差分两个方向推广了逐点一阶均值不等式。

摘要:

我们通过Littlewood-Paley平方函数以及涉及二阶差分的Strichartz泛函,建立了分次李群上位势型Sobolev空间的刻画。一些可能具有独立研究价值的均值不等式发挥了关键作用。实际上,逐点一阶不等式在两个方向上得到推广:在$L^p$空间上,以及通过考虑二阶差分的方式。

英文摘要:

We develop characterizations for Sobolev spaces of potential type on graded Lie groups, by means of Littlewood-Paley square functions, and Strichartz functionals involving second-order differences. A key role is played by some mean value inequalities that may be of independent interest. Indeed, the point-wise first-order inequality is generalized in two directions: on $L^p$-spaces and by considering second-order differences.

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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