| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5775213 | Journal of Mathematical Analysis and Applications | 2017 | 12 Pages |
Abstract
We deal with the following functional equation:f(xy)+λf(x)f(y)=Ï(x,y), where λ is a complex number and f and Ï are complex mappings defined on a semigroup. Moreover, we assume an addition formula of trigonometric type for Ï. Our research is motivated by some earlier results related to a problem posed by S. Butler in 2003.
Related Topics
Physical Sciences and Engineering
Mathematics
Analysis
Authors
WÅodzimierz Fechner, Å»ywilla Fechner,