$K$-functionals and extreme problems of the theory of approximation for classes of analytic functions in the circle. I
УДК 517.5 Based on the Hadamard composition in the Hardy, Bergman and Gvaradze Banach spaces of functions analytic in the unit circle, we consider a generalization of the $K$-functional. In solving some extreme problems of the theory of approximation in the complex plane, we obtain cert...
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| Date: | 2022 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Institute of Mathematics, NAS of Ukraine
2022
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| Online Access: | https://umj.imath.kiev.ua/index.php/umj/article/view/6980 |
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| Journal Title: | Ukrains’kyi Matematychnyi Zhurnal |
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