Aizenman, Michael A sufficient condition for the avoidance of sets by measure preserving flows in \(\mathbb R^ n\). (English) Zbl 0471.28015 Duke Math. J. 45, 809-813 (1978). MSC: 37A10 28D10 PDFBibTeX XMLCite \textit{M. Aizenman}, Duke Math. J. 45, 809--813 (1978; Zbl 0471.28015) Full Text: DOI Euclid
Cushman, Richard The relationship between the index of a strongly stable periodic linear Hamiltonian vectorfield and the index of its stability domain. (English) Zbl 0403.58003 Duke Math. J. 45, 701-709 (1978). MSC: 37J99 37C75 70H03 PDFBibTeX XMLCite \textit{R. Cushman}, Duke Math. J. 45, 701--709 (1978; Zbl 0403.58003) Full Text: DOI