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Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika, 2011, Number 12, Pages 71–75
(Mi ivm8408)
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Brief communications
Sharp estimates for functions with a pole and a logarithmic singularity
F. G. Avkhadiev Chair of Function Theory and Approximations, Kazan (Volga Region) Federal University, Kazan, Russia
Abstract:
We consider functions with a pole and a logarithmic singularity. We obtain sharp estimates for the Schwarzian and the Taylor coefficients of the holomorphic part of such functions. We also describe geometric properties of conformal mappings of the exterior of the unit disc with a cut that connects some boundary point with a point at infinity.
Keywords:
conformal mappings, Schwarzian, coefficient estimates.
Received: 05.06.2011
Citation:
F. G. Avkhadiev, “Sharp estimates for functions with a pole and a logarithmic singularity”, Izv. Vyssh. Uchebn. Zaved. Mat., 2011, no. 12, 71–75; Russian Math. (Iz. VUZ), 55:12 (2011), 58–62
Linking options:
https://www.mathnet.ru/eng/ivm8408 https://www.mathnet.ru/eng/ivm/y2011/i12/p71
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