The real geometry of complex space-times

Nonlinear gravitons and curved twistor theory

Roger Penrose · General Relativity and Gravitation · 1976 · 692 citations

Natural Sciences, Physics, Gravitation +13

STRUCTURE OF SPACE--TIME.

Roger Penrose · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1968 · 253 citations

Left-Degenerate Vacuum Metrics

Jerzy Plebański, Ivor Robinson · Physical Review Letters · 1976 · 111 citations

Natural Sciences, Mathematics, Physics +14

COMPLEX EXTENSIONS

H. B. SHUTRICK · The Quarterly Journal of Mathematics · 1958 · 11 citations

Natural Sciences, Mathematics, Algebra +5