Axes of symmetry for plane curves
The author continues his study of the plane curves described in his previous papers in J. Math. Anal. Appl. 148, No. 1, 11-21 (1990; Zbl 0707.53001) and Serdica 16, No. 1, 66-74 (1990; Zbl 0707.42018). Using the special families of functions described there and Fourier expansions, he develops conditions for these curves to admit an axis of a reflectional symmetry.
scientific article; zbMATH DE number 556290