Erratum: "How should spin-weighted spherical functions be defined?" [J. Math. Phys. 57, 092504 (2016)].

Reference [1] defined spin-weighted spherical functions as functions on the spin group Spin(3) SU(2) or the rotation group SO(3), and described an operator I K i analogous to the usual angular-momentum operator I L i . The equation defining the raising and lowering operators of I K i SB I z i sb contained a typo. Erratum: "How should spin-weighted spherical functions be defined?". [Extracted from the article]