TWO ENTIRE FUNCTIONS SHARING FOUR SMALL FUNCTIONS IN THE SENSE OF _(k))(β,f)=_(k))(β,g)

摘要

this paper proves a result that if two entire functions f(z) and g(z) share four small functions aj(z) (j=1,2,3,4) in the sense of -↑Ek(aj,f)=-↑E)(aj,g),(j=1,2,3,4)(k≥11),then there exists f(z)≡g(z).