Saniga, Metod On Cremonian dimensions qualitatively different from time and space. (English) Zbl 1073.83523 Chaos Solitons Fractals 25, No. 3, 515-520 (2005). MSC: 83D05 83F05 PDFBibTeX XMLCite \textit{M. Saniga}, Chaos Solitons Fractals 25, No. 3, 515--520 (2005; Zbl 1073.83523) Full Text: DOI arXiv
Saniga, Metod Quadro-quartic Cremona transformations and four-dimensional pencil-space-times with the reverse signature. (English) Zbl 1033.53020 Chaos Solitons Fractals 13, No. 4, 797-805 (2002). MSC: 53B30 53A20 14E07 PDFBibTeX XMLCite \textit{M. Saniga}, Chaos Solitons Fractals 13, No. 4, 797--805 (2002; Zbl 1033.53020) Full Text: DOI