TITLE:
Kruskal Coordinates, Semi-Complex Extension of Spacetime
AUTHORS:
Jean-Pierre Petit
KEYWORDS:
Semi-Complex Extension, Kruskal Coordinates, Kruskal Diagram, Schwarzschild Geometry, Autoparallel Curves, Ghost Images, Ghost Geometry, Ghost Symmetry, Pseudo-Real Coordinates
JOURNAL NAME:
Journal of Modern Physics,
Vol.17 No.9,
September
29,
2026
ABSTRACT: In this article, we re-examine the geometric nature of the extension of the Schwarzschild solution into the domain
0α
and the inner region
0