Does having a minimum length in space violate Lorentz invariance?
23359
Does the Planck scale imply that spacetime is discrete?
69423
Pure Lorentz boost; transpose $\neq$ inverse?
116427
$(c^{\mu}\partial_{\mu}-m)\phi(x)=0$ not Lorentz-invariant?
75055
Paradox with Gauss' law when space is uniformly charged everywhere
88658
Confusion regarding the principle of least action in Landau & Lifshitz "The Classical Theory of Fields"
66193
How to prove that a flat spacetime admits Minkowski coordinates?
148196
Does the speed of light in different mediums affect the lorentz transformation?
152505
Does space curvature automatically imply extra dimensions?
137834
Distance in relativistic circular motion in invariant spacetime
140005
How will a particle with energy less than $V_{\rm min}$ behave?
137796
Local translations in curved spacetime
26363
How does faster than light travel violate causality?
48930
Least-action classical electrodynamics without potentials
120590
Determining the Lorenz gauge condition
108384
Special Relativity and $E = mc^2$
38714
Can a metric in General Relativity, Supergravity, String Theory, etc., be asymmetric?
50360
How would wormhole-based FTL violate causality?