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This article is cited in 9 scientific papers (total in 9 papers)
About multipoint distortion theorems for rational functions
S. I. Kalmykovab a School of Mathematical Sciences, Shanghai Jiao Tong University
b Institute for Applied Mathematics, Far Eastern Branch, Russian Academy of Sciences, Vladivostok
Abstract:
We prove some two- and three-point distortion theorems for rational functions that generalize some recent results on Bernstein-type inequalities for polynomials and rational functions. The rational functions under study have either majorants or restrictions on location of their zeros. The proofs are based on the new version of the Schwarz Lemma and univalence condition for regular functions which was suggested by Dubinin.
Keywords:
rational functions, Bernstein-type inequalities, multipoint distortion theorems, univalent functions.
Received: 15.02.2019 Revised: 25.03.2019 Accepted: 15.05.2019
Citation:
S. I. Kalmykov, “About multipoint distortion theorems for rational functions”, Sibirsk. Mat. Zh., 61:1 (2020), 107–119; Siberian Math. J., 61:1 (2020), 85–94
Linking options:
https://www.mathnet.ru/eng/smj5967 https://www.mathnet.ru/eng/smj/v61/i1/p107
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Abstract page: | 221 | Full-text PDF : | 61 | References: | 43 | First page: | 3 |
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