Four-Volume

DEFINITION

Four-Volume

$d^{4} x = d x^{0} \cdot d x^{1} \cdot d x^{2} \cdot d x^{3}$

Lorentz-Invariant → $d^{4} \tilde{x}$ = $d {\tilde{x}}^{0} \cdot d {\tilde{x}}^{1} \cdot d {\tilde{x}}^{2} \cdot d {\tilde{x}}^{3}$ = $d e t (Λ) \cdot d x^{0} \cdot d x^{1} \cdot d x^{2} \cdot d x^{3}$ ^[1]

QUESTIONS

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