Free fermion: exact collinear divided-difference vertices.
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A second collinear test uses a free chiral fermion whose one-particle Hamiltonian is nearest-neighbour, with dispersion [formula in source] . This is a finite-spacing Ward test, not a claim of a doubler-free [formula in source] dimensional chiral theory. For a bilinear transferring momentum [formula in source] , set [formula in source] The exact divided-difference identity is [formula in source] Consequently the ener
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tex-artefacts/toe_round7_matter_coupling.tex · lines 383 to 420
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