In the original version of this article, the $ symbols were misinterpreted as part of the article text and placed in the article as it is.

中文翻译：

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更正：网络上的高阶算子：双曲线和抛物线理论

在本文的原始版本中，$ 符号被误解为文章文本的一部分，并按原样放置在文章中。