Multi-parameter Carnot-Carathéodory balls and the theorem of Frobenius
نویسنده
چکیده
We study multi-parameter Carnot-Carathéodory balls, generalizing results due to Nagel, Stein, and Wainger in the single parameter setting. The main technical result is seen as a uniform version of the theorem of Frobenius. In addition, we study maximal functions associated to certain multi-parameter families of Carnot-Carathéodory balls.
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تاریخ انتشار 2009