ter Elst, A. F. M.; Robinson, Derek W. Conservation and invariance properties of sub-Markovian semigroups. (English) Zbl 1215.31002 J. Ramanujan Math. Soc. 24, No. 3, 285-297 (2009). Reviewer: Enrico Priola (Torino) MSC: 31C15 31C25 35J70 PDFBibTeX XMLCite \textit{A. F. M. ter Elst} and \textit{D. W. Robinson}, J. Ramanujan Math. Soc. 24, No. 3, 285--297 (2009; Zbl 1215.31002) Full Text: arXiv
Robinson, Derek W.; Sikora, Adam Degenerate elliptic operators: capacity, flux and separation. (English) Zbl 1132.35382 J. Ramanujan Math. Soc. 22, No. 4, 385-408 (2007). MSC: 35J70 31C15 35H20 PDFBibTeX XMLCite \textit{D. W. Robinson} and \textit{A. Sikora}, J. Ramanujan Math. Soc. 22, No. 4, 385--408 (2007; Zbl 1132.35382) Full Text: arXiv