Prasanna, A. R. On certain space-times having the fourth component of energy-momentum complex identically zero. (English) Zbl 1098.83524 Prog. Theor. Phys. 45, 1330-1335 (1971). Summary: We have shown that space-time with purely time-dependent metric potentials have their components of total energy and momentum for any finite volume \((T_i^4+t_i^4)\) identically zero. The vanishing of \((T_i^4+t_i^4)\) also admits a plane-wave metric where \(g_{ij}\)’s are functions of space and time variables, which can be interpreted as representing electromagnetic radiation. Cited in 1 Document MSC: 83C99 General relativity PDFBibTeX XMLCite \textit{A. R. Prasanna}, Prog. Theor. Phys. 45, 1330--1335 (1971; Zbl 1098.83524) Full Text: DOI