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单位圆内有穷正级亚纯函数的T-半径和Borel半径
T-radii and Borel radii of meromorphic functions of finite positive order in the unit disc
【摘要】 作者证明了对任意正数λ,正整数q1和q2,记E1={argz=θj|0≤θ1<θ2<…<θq1<2π},E2={argz=φj|0≤φ1<φ2<…<φq2<2π},使得E1∩E2=。则(ⅰ)存在单位圆内的λ级亚纯函数f(z),恰以E1∪E2为其T-半径且恰以E2为其Borel半径,(ⅱ)存在单位圆内级和下级均为λ的亚纯函数g(z),恰以E1∪E2为其Borel半径且恰以E2为其T-半径。
【Abstract】 Let λ be a positive number, q1 and q2 be positive integers. Assume that E1= {argz=θj|0≤θ1<θ2<…<θq1<2π} and E2={argz=φj|0≤φ1<φ2<…<φq2<2π} such that E1∩E2=. Then (ⅰ) there exists a meromorphic function f(z) of order λ in the unit disc, which takes the E1∩E2 as its T-radii and E2 as its Borel radii, (ⅱ) there exists a meromorphic function g(z) of order and lower order λ in the unit disc, which takes the E1∪E2 as its Borel radii and E2 as its T-radii.
【关键词】 亚纯函数;
单位圆;
Borel半径;
T-半径;
【Key words】 meromorphic function; unit disc; Borel radius; T-radius;
【Key words】 meromorphic function; unit disc; Borel radius; T-radius;
- 【文献出处】 四川大学学报(自然科学版) ,Journal of Sichuan University(Natural Science Edition) , 编辑部邮箱 ,2009年02期
- 【分类号】O174.52
- 【被引频次】1
- 【下载频次】7