复向量场与平方和系统的导数损失
Loss of derivatives for systems of complex vector fields and sums of squares
摘要：
我们讨论，无论是系统的复杂向量场和平方和，现象发现科恩的亚椭圆损失的衍生物。
英文摘要：
We discuss, both for systems of complex vector fields and for sums of squares, the phenomenon discovered by Kohn of hypoellipticity with loss of derivatives.
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。
