We investigate the automorphism group of a plane curve, introducing the notion of a quasi-Galois point. We show that the automorphism group of several curves, for example, Klein quartic, Wiman sextic and Fermat curves, is generated by the groups associated with quasi-Galois points.
"Quasi-Galois points, I: Automorphism groups of plane curves." Tohoku Math. J. (2) 71 (4) 487 - 494, 2019. https://doi.org/10.2748/tmj/1576724789