论文标题
Córdoba的区分定理:重新审视
Córdoba's differentation theorem: revisited
论文作者
论文摘要
在本文中,我们证明了一个指数覆盖的引理,这意味着大约于1935年大约于1935年提出的众所周知的猜想的三维案例,并于1978年由A.Córdoba解决。我们的方法避免了涉及指数功能的功率系列的微妙论点。
In this paper we prove an exponential covering lemma implying the three dimensional case of a well-known conjecture formulated by A. Zygmund circa 1935 and solved by A. Córdoba in 1978. Our approach avoids a subtle argument involving the power series of the exponential function.