2
General Considerations
2.1
Defining Lorentz violation
2.1.1
Lorentz violation in field theory
2.1.2
Modified Lorentz groups
2.2
Kinematics vs. dynamics
2.3
The role of other symmetries
2.3.1
CPT invariance
2.3.2
Supersymmetry
2.3.3
Poincaré invariance
2.4
Diffeomorphism invariance and prior geometry
2.5
Lorentz violation and the equivalence principle
2.6
Systematic vs. non-systematic violations
2.7
Causality and stability
2.7.1
Causality
2.7.2
Stability
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