LeftRightPartialD

Description

LeftRightPartialD[mu] denotes (Subscript[(∂^ ↔) , μ]), acting to the left and right. ExplitPartialD[LeftRightPartialD[μ]] gives 1/2 (RightPartialD[μ] - LeftPartialD[μ]).

See also: ExplicitPartialD, ExpandPartialD, PartialD, LeftPartialD, LeftRightPartialD2, RightPartialD.

Examples

LeftRightPartialD[μ]

ExplicitPartialD[%]

LeftRightPartialD[μ] . 
      QuantumField[A, LorentzIndex[ν]]

ExpandPartialD[%]

QuantumField[A, LorentzIndex[μ]] . LeftRightPartialD[ν] . 
      QuantumField[A, LorentzIndex[ρ]]

ExpandPartialD[%]