 Contraction of two Levi-Civita symbols

ID: contraction-of-two-levi-civita-symbols

Codex  0 Created 2026-09-24 Updated 2026-10-06

Contracting one index gives

ϵ_{ijk} ϵ_{i pq} = δ_{j p} δ_{k q} - δ_{j q} δ_{k p} .

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