TY  - JOUR
AU  - Faulkner, G. D.
AU  - Shonkwiler, R. W.
TI  - Cosine Representations of Abelian *-Semigroups and Generalized Cosine Operator Functions
JO  - Canadian journal of mathematics
PY  - 1978
SP  - 474
EP  - 482
VL  - 30
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1978-042-3/
DO  - 10.4153/CJM-1978-042-3
ID  - 10_4153_CJM_1978_042_3
ER  -