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Canonical static concept record
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At an event, the null directions of the Lorentzian metric separating timelike from spacelike directions and determining possible light propagation.
wp-physics-light_conenlab-physics-light_coneeinstein-spacetimetong-relativityEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
A Lorentzian metric determines the null cone at every spacetime point.
Apply a standard functorial or canonical construction whose output is not merely a reduct of the input and is not generally an equivalent presentation of the same object.
wp-physics-spacetime_metriceinstein-general-relativitytong-grwp-physics-light_conenlab-physics-light_coneeinstein-spacetimetong-relativityEach relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
The continuous arrangement of light cones determines local causal relations and, under suitable conditions, global causal structure.
The source supplies a substantive formal ingredient, dynamical sector, law, field content, or mechanism of the target theoretical framework.
wp-physics-light_conenlab-physics-light_coneeinstein-spacetimetong-relativitywp-physics-causal_structurenlab-physics-causal_structure