Franchi, Bruno; Wheeden, Richard L. Compensation couples and isoperimetric estimates for vector fields. (English) Zbl 0915.46028 Colloq. Math. 74, No. 1, 9-27 (1997). Reviewer: S.Koshi (Sapporo) MSC: 46E35 28A75 PDFBibTeX XMLCite \textit{B. Franchi} and \textit{R. L. Wheeden}, Colloq. Math. 74, No. 1, 9--27 (1997; Zbl 0915.46028) Full Text: DOI EuDML
Gutiérrez, Cristian E.; Wheeden, Richard L. Mean value and Harnack inequalities for degenerate parabolic equations. (English) Zbl 0785.35057 Colloq. Math. 60/61, No. 1, 157-194 (1990). MSC: 35K65 35B45 PDFBibTeX XMLCite \textit{C. E. Gutiérrez} and \textit{R. L. Wheeden}, Colloq. Math. 60/61, No. 1, 157--194 (1990; Zbl 0785.35057) Full Text: DOI