A unified approach to radius of convexity problems for certain classes of univalent analytic functions.
A unified treatment of certain subclasses of prestarlike functions.
A uniformly quasiconformal group not isomorphic to a Möbius group.
A uniqueness result related to meromorphic functions sharing two sets.
A uniqueness theorem for monogenic functions.
A uniqueness theorem of Cartan-Gutzmer type for holomorphic mappings in ℂⁿ
We continue our previous work on a problem of Janiec connected with a uniqueness theorem, of Cartan-Gutzmer type, for holomorphic mappings in ℂⁿ. To solve this problem we apply properties of (j;k)-symmetrical functions.
A univalence criterion for meromorphic functions
A sufficient univalence condition for meromorphic functions is given
A univalence preserving integral operator.
A value-distribution criterion for the class and some related questions
We give a necessary and sufficient condition for an analytic function in to have real part in class . This condition contains the classical one of Zygmund; other variants are also given.
A Vanishing Theorem for Power Series.
A variational method for a class of odd functions in an annulus
A variational method for univalent functions connected with antigraphy
The paper is devoted to a class of functions analytic and univalent in the unit disk that are connected with an antigraphy . Variational formulas and Grunsky inequalities are derived. As an application there are given some estimations in the considered class of functions.
A weak type inequality for Cauchy transforms of finite measures.
In this note we present a simple proof of a recent result of Mattila and Melnikov on the existence of limε→0 ∫|ζ-z|>ε (ζ - z)-1dμ(ζ) for finite Borel measures μ in the plane.
A Weierstrass-type representation for harmonic maps from Riemann surfaces to general Lie groups.
A weighted interpolation problem for analytic functions
A4, A5, S4 and S5 of Schottky type.
Let H be a group of conformal automorphisms of a closed Riemann surface S, isomorphic to either of the alternating groups A4 or A5 or the symmetric groups S4 or S5. We provide necessary and sufficient conditions for the existence of a Schottky uniformization of S for which H lifts. In particular, togheter with the previous works in Hidalgo (1994,1999), we exhaust the list of finite groups of Möbius transformations of Schottky type.
Abelian coverings, Poincaré exponent of convergence and holomorphic deformations.
Abelian nondiscrete convergence groups in the plane.
About a conjecture of F. W. Gehring on the boundary correspondence by quasi-conformal mappings
About a differential inequality.