Journal of the London Mathematical Society Advance Access originally published online on February 20, 2008
Journal of the London Mathematical Society 2008 77(2):405-423; doi:10.1112/jlms/jdm118
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© 2008 London Mathematical Society
On multiply connected wandering domains of meromorphic functions
Department of Mathematics
The Open University
Walton Hall
Milton Keynes
MK7 6AA
United Kingdom
g.m.stallard@open.ac.uk
We describe conditions under which a multiply connected wandering domain of a transcendental meromorphic function with a finite number of poles must be a Baker wandering domain, and we discuss the possible eventual connectivity of Fatou components of transcendental meromorphic functions. We also show that if f is meromorphic, U is a bounded component of F(f) and V is the component of F(f) such that f(U)
V, then f maps each component of
U onto a component of the boundary of V in
. We give examples which show that our results are sharp; for example, we prove that a multiply connected wandering domain can map to a simply connected wandering domain, and vice versa.
2000 Mathematics Subject Classification 30D05, 37F10.
Received July 20, 2006; revised October 2, 2007; published online February 20, 2008.