Kaushal, R. S.; Singh, Shweta Construction of complex invariants for classical dynamical systems. (English) Zbl 0985.70012 Ann. Phys. 288, No. 2, 253-276 (2001). MSC: 70H05 70G65 37N05 PDFBibTeX XMLCite \textit{R. S. Kaushal} and \textit{S. Singh}, Ann. Phys. 288, No. 2, 253--276 (2001; Zbl 0985.70012) Full Text: DOI
Kaushal, R. S.; Korsch, H. J. Some remarks on complex Hamiltonian systems. (English) Zbl 1154.70329 Phys. Lett., A 276, No. 1-4, 47-51 (2000). MSC: 70H06 70H05 PDFBibTeX XMLCite \textit{R. S. Kaushal} and \textit{H. J. Korsch}, Phys. Lett., A 276, No. 1--4, 47--51 (2000; Zbl 1154.70329) Full Text: DOI