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机构地区:[1]School of Mathematics, Shandong University
出 处:《Acta Mathematica Scientia》2013年第3期773-780,共8页数学物理学报(B辑英文版)
基 金:supported by the NSF of Shandong Province, China (ZR2010AM030);the NNSF of China (11171013 & 11041005)
摘 要:Let f be a transcendental meromorphic function and △f(z) = f(z + 1) -- f(z) A number of results are proved concerning the existences of zeros and fixed points of Af(z) and △f(z)/f(z) when f(z) is of order σ(f)=1. Examples show that some of the results are sharp.Let f be a transcendental meromorphic function and △f(z) = f(z + 1) -- f(z) A number of results are proved concerning the existences of zeros and fixed points of Af(z) and △f(z)/f(z) when f(z) is of order σ(f)=1. Examples show that some of the results are sharp.
关 键 词:Entire functions meromorphic functions complex difference fixed points ZEROS
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