New su.cient conditions are derived for the integral operator of mereomorphic functions defined by H(z) = c z c+1 z 0 u c.1 (uf 1 (u)) γ 1 · · · (uf n (u)) γ n du, to be in the class Σ N (λ) of meromorphic functions satisfying the condition . Re{ zf (z) f (z) + 1} 1.
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机译：推导由H（z）= cz c + 1 z 0 u c.1（uf 1（u））γ1···（uf n（u））定义的单纯函数的积分算子的新的充分条件。 γn du为满足条件的亚纯函数的ΣN（λ）类。 Re {zf（z）f（z）+ 1} 1。
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