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A note on the zeros of approximations of the Ramanujan $Ξ-$function

In this paper, we review the study of the distribution of the zeros of certain approximations for the Ramanujan $Ξ-$function given by Haseo Ki, and we provide a new proof of his results. Our approach is motivated by the ideas of Velásquez in the study of the zeros of certain sums of entire functions with some condition of stability related to the Hermite-Biehler theorem.

preprint2020arXivOpen access
Andrés ChirreOswaldo Velásquez Castañón
math.CVmath.NT
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Andrés ChirreOswaldo Velásquez Castañón

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