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arXiv 2212.04293math.PR
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一类具有负Besov指数漂移的偏微分方程的线性增长解

A pde with drift of negative Besov index and linear growth solutions

Elena Issoglio, Francesco Russo

摘要:

本文研究了一类系数在负Besov空间中且解具有线性增长的偏微分方程。我们证明了在这种情况下等价的温和解和弱解的存在性和唯一性,以及几个连续性结果。为此,我们引入了ad-hoc Besov-H{<$}lder型空间,它允许线性增长,并研究了热半群对它们的作用。我们通过引入这些空间的一个特殊子类来结束本文,该子类具有可分的有用性质。

英文摘要:

This paper investigates a class of PDEs with coefficients in negative Besov spaces and whose solutions have linear growth. We show existence and uniqueness of mild and weak solutions, which are equivalent in this setting, and several continuity results. To this aim, we introduce ad-hoc Besov-H{ö}lder type spaces that allow for linear growth, and investigate the action of the heat semigroup on them. We conclude the paper by introducing a special subclass of these spaces which has the useful property to be separable.

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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