Abstract
Let $f_i, i=1,2,\ldots,m $ be transcendental meromorphic functions of order less than $\frac{1}{2}$ with at most finitely many poles and at least one of them has positive lower order. Let $g = f_m \circ f_{m-1}\circ \cdots \circ f_1.$ Then either $g$ has no unbounded Fatou components or at least one unbounded Fatou component $g$ is multiply connected.
Citation
Keaitsuda Maneeruk. Piyapong Niamsup. "UNBOUNDED FATOU COMPONENTS OF COMPOSITE TRANSCENDENTAL MEROMORPHIC FUNCTIONS WITH FINITELY MANY POLES." Taiwanese J. Math. 12 (5) 1123 - 1129, 2008. https://doi.org/10.11650/twjm/1500574252
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