参考文献/References:
[1] Hayman W K.Meromorphic function[M].Oxford:Clarendon Press,1964.
[2] Laine I.Nevanlinna theory and complex differential equations[M].Berlin,New York:Walter de Gruyter,1993.
[3] Hayman W K.Picard values of meromorphic functions and their derivatives[J].Ann Math,1959,70(1):9-42.
[4] Mues E.Über ein problem von Hayman[J].Math Z,1979,164(3):239-259.
[5] Bergweiler W,Eremenko A.On the singularities of the inverse to a meromorphic function of finite order[J].Rev Mat Lberoam,1996,11(2):355-373.
[6] Chen Huaihui,Fang Mingliang.On the value distribution of f nf '[J].Sci China:Ser A,1995,38(7):789-798.
[7] Chiang Yikman,Feng Shaoji.On the Nevanlinna characteristic of f(z+η) and difference equations in the complex plane[J].Ramanujian J,2008,16(1):105-129.
[8] Halburd R G,Korhonen R J.Difference analogue of the Lemma on the Logarithmic derivative with applications to difference equations[J].J Math Anal Appl,2006,314(2):477-487.
[9] Halburd R G,Korhonen R J.Nevanlinna theory for difference operator[J].Ann Acad Sci Fenn Math,2006,31(2):463-478.
[10] Laine I,Yang Chuangchun.Value distribution of difference polynomials[J].Proc Japan Acad Ser A:Math Sci,2007,83:148-151.
[11] Chen Zongxuan,Huang Zhibo,Zheng Xiumin.On properties of difference polynomials[J].Acta Math Sin,2011,31B(2):627-633.
[12] Huang Zhibo,Chen Zongxuan.A Cluie Lemma for difference and q-difference polynomials[J].Bull Aust Math Soc,2010,81(1):23-32.
[13] Lü Weiran,Liu Nana,Yang Chuangchun,et al.Notes on value distributions of ff(k)-b[J].Kodai Math J,2016,39(3):500-509.
[14] Latreuch Z,Belaïdi B.On picard value problem of some difference polynomials[J].Arab J Math,2018,7(1):27-37.
[15] Qi Xiaoguang,Dou Jia,Yang Lianzhong.Uniqueness and value distribution for difference operators of meromorphic function[J].Adv Differ Equ,2012,2012(32):1-9.
[16] Zhang Jilong.Value distribution and shared sets of difference of meromorphic functions[J].J Math Anal Appl,2010,367(2):401-408.
[17] Liu Kai,Liu Xinling,Cao Tingbin.Value distributions and uniqueness of difference polynomials[J].Adv Differ Equ,2011,2011:1-12.
[18] Liu Kai,Cao Tingbin,Liu Xinling.Some difference results on Hayman conjecture and uniqueness[J].Bull Iranian Math Soc,2012,38(4):1007-1020.
[19] Luo Xudan,Lin Weichuan.Value sharing results for shifts of meromorphic functions[J].J Math Anal Appl,2011,377(2):441-449.
[20] Chen Zongxuan.Complex differences and difference equations[M].Beijing:Science Press,2014.