Hyperbolically close to $Q_p^\#$-sequences
Bull. Korean Math. Soc. 2020 Vol. 57, No. 1, 133-138
Published online January 31, 2020
Rauno Aulaskari, Shamil Makhmutov, Jouni R\"atty\"a
University of Eastern Finland; Sultan Qaboos University; University of Eastern Finland
Abstract : It is shown that each sequence lying sufficiently close in the hyperbolic sense to a $Q_p^\#$-sequence for a meromorphic function $f$ in the unit disc is also a $Q_p^\#$-sequence for~$f$.
Keywords : Normal function, $\N$-sequence, spherical derivative, $Q^\#_p$-class, $Q^\#_p$-sequence
MSC numbers : 30D45, 30D50
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