Bonanos, S. A new spinor identity and the vanishing of certain Riemann tensor invariants. (English) Zbl 0927.53020 Gen. Relativ. Gravitation 30, No. 4, 653-658 (1998). Reviewer: J.D.Zund (Las Cruces) MSC: 53A55 83C60 PDFBibTeX XMLCite \textit{S. Bonanos}, Gen. Relativ. Gravitation 30, No. 4, 653--658 (1998; Zbl 0927.53020) Full Text: DOI
Bonanos, S. Discrete symmetries of Petrov type-I space-times. (English) Zbl 0672.53057 Gen. Relativ. Gravitation 21, No. 10, 1073-1083 (1989). MSC: 53B50 83C40 83C20 PDFBibTeX XMLCite \textit{S. Bonanos}, Gen. Relativ. Gravitation 21, No. 10, 1073--1083 (1989; Zbl 0672.53057) Full Text: DOI
Bonanos, S. A geometric determination of the Weyl canonical frame in Petrov type-I space-times. (English) Zbl 0669.53057 Gen. Relativ. Gravitation 21, No. 9, 953-957 (1989). MSC: 53B50 83C20 PDFBibTeX XMLCite \textit{S. Bonanos}, Gen. Relativ. Gravitation 21, No. 9, 953--957 (1989; Zbl 0669.53057) Full Text: DOI