Let be an entire function of one variable satisfying , and let be a nonzero polynomial. If is entire, it satisfies a bound of the same exponential type, with a possibly different polynomial power. Indeed, outside a sufficiently large disk, ; inside the disk the extended quotient is bounded. Combining these estimates proves the claim. The same reasoning works with the exact support function of a compact interval. Zeros of must cancel every root of with its full multiplicity.
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