On a conjecture of Vukman
oleh: Qing Deng
| Format: | Article |
|---|---|
| Diterbitkan: | Wiley 1997-01-01 |
Deskripsi
Let R be a ring A bi-additive symmetric mapping d:R×R→R is called a symmetric bi-derivation if, for any fixed y∈R, the mapping x→D(x,y) is a derivation. The purpose of this paper is to prove the following conjecture of Vukman.