讲座内容：

Let   be a unital algebra over a field F. A linear map Φ from   into itself is called a Lie centralizer at a given point G∈A if Φ[S, T]=[Φ(S), T]=[S, Φ(T)] for all S,T∈A with ST=G. In this talk we will present some descriptions of Lie centralizers at a fixed point on generalized matrix algebras. These results are then applied to some operator algebras.