Abstract.
In this note we treat the functional equation \(f(cz)=a(z)f(z)+b(z)\), where c is a constant \(|c|\ne1\), 0, and a(z), b(z) are rational functions. It is shown that no transcendental meromorphic solution of the functional equation satisfies an algebraic differential equation with rational coefficients.
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Received: January 19, 1998; revised version: June 25, 1998
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Ishizaki, K. Hypertranscendency of meromorphic solutions of a linear functional equations. Aequ. math. 56, 271–283 (1998). https://doi.org/10.1007/s000100050062
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DOI: https://doi.org/10.1007/s000100050062