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An equation determining allowed histories or evolution from the dynamical variables and initial or boundary data.
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This is an authored directed relation from the source endpoint to the target endpoint.
Equations of motion are dynamical physical laws for histories or states.
A more specific theory, model, entity class, or regime is obtained by restricting or extending the scope of a broader framework.
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Within an adiabatic electronic-state approximation, gradients of a molecular potential-energy surface supply forces in nuclear equations of motion; nonadiabatic transitions require coupled surfaces and additional terms.
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
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Variation of the action yields equations of motion under appropriate boundary conditions.
Record a genuine theorem implication that is not part of the target definition; these edges may point toward a weaker structure.
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This is an authored directed relation from the source endpoint to the target endpoint.
Euler–Lagrange equations are the equations of motion obtained by stationarity of a Lagrangian action.
The target is a member or subtype of the broader source class.
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