We investigate the possible limit distributions of zeros and poles associated with ray sequences of rational functions that are asymptotically optimal for weighted Zolotarev problems. For disjoint compacta E 1 , E 2 in the complex plane, the Zolotarev problem entails minimizing the ratio of the sup
The asymptotic zero distribution of sections and tails of classical Lindelöf functions
✍ Scribed by Iossif Ostrovskii; Natalya Zheltukhina
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 188 KB
- Volume
- 283
- Category
- Article
- ISSN
- 0025-584X
No coin nor oath required. For personal study only.
✦ Synopsis
We study the asymptotic (as n → ∞) zero distribution of
where μ ∈ C, sn is n th section, tn is n th tail of the power series of classical Lindelöf function Γ λ of order λ. Our results generalize the results by A. Edrei, E. B. Saff, and R. S. Varga for the case μ = 0.
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