Lorentz scalar
= Lorentz scalar
{c}
{wiki}
A Lorentz scalar is unchanged under a <Lorentz transformation>. Contracting every Lorentz index in a tensor expression produces a scalar when the constituent fields transform covariantly.
= Lorentz scalar
{c}
{wiki}
A Lorentz scalar is unchanged under a <Lorentz transformation>. Contracting every Lorentz index in a tensor expression produces a scalar when the constituent fields transform covariantly.