-
Akkouchi, M., Bouikhalene, B., Elqorachi, E., Functional equations and K-spherical functions, Georgian Math. J. 15 (2008), 1-20.
-
An, J., Yang, D.,Nonabelian harmonic analysis and functional equations on compact groups, J. Lie Theory 21 (2011), 427-455.
-
Badora, R., On a joint generalization of Cauchy's and d'Alembert's functional equations, Aequationes Math. 43 (1992), 72-89.
-
Chahbi, A., Fadli, B., Kabbaj, S., Functional equations of Cauchy's and d'Alembert's type on compact groups, Proyecciones (Antofagasta) 34 (2015), 297-305.
-
Chojnacki, W., On some functional equation generalizing Cauchy's and d'Alembert's functional equations, Colloq. Math. 55 (1988), 169-178.
-
Chojnacki, W., On group decompositions of bounded cosine sequences, Studia Math. 181 (2007), 61-85.
-
Chojnacki, W., On uniformly bounded spherical functions in Hilbert space, Aequationes Math. 81 (2011), 135-154.
-
Fadli, B., Zeglami, D., Kabbaj, S., A variant of Wilson's functional equation, Publ. Math. Debrecen, to appear.
-
Davison, T. M. K., D'Alembert's functional equation on topological groups, Aequationes Math. 76 (2008), 33-53.
-
Davison, T. M. K., D'Alembert's functional equation on topological monoids, Publ. Math. Debrecen, 75 (2009), 41-66.