supported by the National Natural Science Foundation of China (No. 10371065) ;the Natureand Science Fund of China-Russial Federation Basical Research (No. 10911120056).
The authors study the problem of uniqueness of meromorphic mappings and obtain two results which partially improve two theorems of Yah and Chen in 2006.
This work is supported by the NNSF of China(No.10371065);the NSF of Shandong Province,China(No.Z2002A01)
In this paper, we prove several results concerning meromorphic functions f and g of hyperorder less than one such that f^(j) and g^(j) have the same zeros and poles for j=0, 1, 2. We provide some examples to show ...
The value distribution of differential polynomials is studied. The results in this paper improve and generalize some previous theorems given by Yang Chungchun (On deficiencies of differential polynomials, Math. Z., ...
The first author is supported in part by the Post Doctoral Fellowship at Shandong University.The second author is supported by the national Nature Science Foundation of China (10371065).
Let F be a family of holomorphic functions in a domain D, k be a positive integer, a, b(≠0), c(≠0) and d be finite complex numbers. If, for each f∈F, all zeros of f-d have multiplicity at least k, f^(k) = a w...