Value sharing of an entire function and its derivatives

In this paper, when an entire function f and the linear combination of its derivatives L(f ) with small functions as its coefficients share one value CM and another value IM is studied. We also resolved the question when an entire function f and its derivative fʹ share two values CM jointly. Some of the results remain to be valid if f is meromorphic and satisfying N(r,f)=o(T(r,f)) as r>(unlimited) and the values a, b are replaced by small functions of f(z)