Method of variations for maps representable by means of Stieltjes integrals
In studying properties of classes of analytic functions and in finding extreme values of func-tionals on these classes, appropriate variational formulas are used. In this work, they are found for classes of functions that can be represented by a Stieltjes integral or some combination of such integrals. Variational formulas for classes of holomorphic functions with a positive real part in a circle are presented. Based on these formulas, variational formulas for star convex univalent mappings were obtained. Two variational formulas were obtained for functions holomorphic in a circular ring with a positive real part therein.
Keywords
интеграл Стилтьеса, классы голоморфных функций, вариационные формулы, Stieltjes integral, classes of holomorphic functions, variational formulasAuthors
Name | Organization | |
Aleksandrov Igor Aleksandrovich | Tomsk State University | ma@math.tsu.ru |
Ezhova Olga Igorevna | Tomsk State University | oezhova@gmail.com |
References

Method of variations for maps representable by means of Stieltjes integrals | Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2014. № 5(31).