Unverified50% confidenceFactExact time
The standard form of the Minkowski metric is ds^2 = -c^2dt^2 + dx^2 + dy^2 + dz^2 (or with the opposite sign convention), describing inertial-frame spacetime with no gravity and no curvature, whose isometry group is the Poincaré group.
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11/3/2026
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