AWhat changed
Kruskal gives a simple global coordinate representation of the maximal singularity-free analytic Schwarzschild extension, displaying two exterior and two interior regions while retaining the intrinsic center singularity.
Scientific scope
Kruskal gives a simple global coordinate representation of the maximal singularity-free analytic Schwarzschild extension, displaying two exterior and two interior regions while retaining the intrinsic center singularity. The extension is for the classical Schwarzschild vacuum solution with the stated mass/coordinate construction. Removing a horizon coordinate singularity does not remove the central curvature singularity. The complete idealized extension differs from the spacetime of a particular collapsing star. Rotating/charged and quantum geometries are outside this target.
Evidence
Source-linked, scoped account of the original work. The published scope states the scientific assumptions and remaining verification limits. WRS has not independently certified the full proof, experimental result or system benchmark.
Contributors
- M. D. Kruskal · SCIENCE: Original source-listed scientific author of this scoped work; byline does not determine effort fractions.
- M. D. Kruskal: Maximal Extension of Schwarzschild Metric,1960 original 1743-1745
- APS 1960 originalbibliographicidentity/byline
- Cederbaum and Wolff 2024 selected introduction andgeneralizedextensionconstruction
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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