Verchota, Gregory C.; Vogel, Andrew L. The multidirectional Neumann problem in \(\mathbb R^{4}\). (English) Zbl 1102.31008 Math. Ann. 335, No. 3, 571-644 (2006). Reviewer: Dian K. Palagachev (Bari) MSC: 31C05 57N10 35J05 35B65 35B45 PDFBibTeX XMLCite \textit{G. C. Verchota} and \textit{A. L. Vogel}, Math. Ann. 335, No. 3, 571--644 (2006; Zbl 1102.31008) Full Text: DOI
Verchota, Gregory C.; Vogel, Andrew L. A multidirectional Dirichlet problem. (English) Zbl 1274.35096 J. Geom. Anal. 13, No. 3, 495-520 (2003). MSC: 35J25 31B25 PDFBibTeX XMLCite \textit{G. C. Verchota} and \textit{A. L. Vogel}, J. Geom. Anal. 13, No. 3, 495--520 (2003; Zbl 1274.35096) Full Text: DOI