Geodesic
Additive f-bimorphisms and Cosine Type Equations
Publications de l'Institut Mathématique, _N_S_62 (1997) no. 76, p. 63

Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

We introduce the notion of an additive $f$-bimorphism, and study the relationship between the cosine functional equation and the additive $f$-bimorphism. Indeed, the former may be characterized in terms of the latter. Moreover, some generalized cosine functional equations are presented, which may be similarly characterized.
Classification : 39B70 39B50 
@article{PIM_1997_N_S_62_76_a6,
     author = {C.-S. Lin and Y.J. Cho},
     title = {Additive f-bimorphisms and {Cosine} {Type} {Equations}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {63 },
     publisher = {mathdoc},
     volume = {_N_S_62},
     number = {76},
     year = {1997},
     zbl = {0994.39019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1997_N_S_62_76_a6/}
}
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C.-S. Lin; Y.J. Cho. Additive f-bimorphisms and Cosine Type Equations. Publications de l'Institut Mathématique, _N_S_62 (1997) no. 76, p. 63 . http://geodesic.mathdoc.fr/item/PIM_1997_N_S_62_76_a6/