KnowraKronecker deltaLinked fromLinked fromThe 8 pages that link to Kronecker delta, each with the reason it gives.All 8Broader topic 2Related 4Compared with 2Identity matrixRelated: Its index rule gives the identity matrix's entries: one on the diagonal and zero off it.Permutation matrixRelated: Its indexed form describes the entries of the identity permutation matrix.Einstein notationRelated: It acts as an identity tensor and can select or rename summed indices.Capelli identityRelated: The shifted determinant’s diagonal correction is expressed using index-dependent scalar shifts.