Integral-type operators from spaces to Zygmund-type spaces on the unit ball.
Soit une fonction sous-analytique de à valeurs dans Nous montrons que l’intégrale est une fonction log-analytique de Nous en déduisons que le volume -dimensionnel des éléments d’une famille sous-analytique de sous-ensembles sous-analytiques globaux de l’espace euclidien est une fonction log-analytique de Un corollaire de ce résultat est le caractère log-analytique de la fonction densité -dimensionnelle d’un sous-analytique global de dimension en tout point de sa fermeture topologique....
This paper is devoted to internal capacity characteristics of a domain D ⊂ ℂⁿ, relative to a point a ∈ D, which have their origin in the notion of the conformal radius of a simply connected plane domain relative to a point. Our main goal is to study the internal Chebyshev constants and transfinite diameters for a domain D ⊂ ℂⁿ and its boundary ∂D relative to a point a ∈ D in the spirit of the author's article [Math. USSR-Sb. 25 (1975), 350-364], where similar characteristics have been investigated...
A necessary and sufficient condition is obtained for a discrete multiplicity variety to be an interpolating variety for the space .
Let S be a sequence of points in the unit ball of ℂⁿ which is separated for the hyperbolic distance and contained in the zero set of a Nevanlinna function. We prove that the associated measure is bounded, by use of the Wirtinger inequality. Conversely, if X is an analytic subset of such that any δ -separated sequence S has its associated measure bounded by C/δⁿ, then X is the zero set of a function in the Nevanlinna class of . As an easy consequence, we prove that if S is a dual bounded sequence...
A sufficient condition is given to make a sequence of hyperplanes in the complex unit ball an interpolating sequence for , i.e. bounded holomorphic functions on the hyperplanes can be boundedly extended.
We prove in this paper that a given discrete variety V in Cn is an interpolating variety for a weight p if and only if V is a subset of the variety {ξ ∈ Cn: f1(ξ) = f2(ξ) = ... = fn(ξ) = 0} of m functions f1, ..., fm in the weighted space the sum of whose directional derivatives in absolute value is not less than ε exp(-Cp(ζ)), ζ ∈ V for some constants ε, C > 0. The necessary and sufficient conditions will be also given in terms of the Jacobian matrix of f1, ..., fm. As a corollary, we solve...
Let be a compact subset of an hyperconvex open set , forming with D a Runge pair and such that the extremal p.s.h. function ω(·,K,D) is continuous. Let H(D) and H(K) be the spaces of holomorphic functions respectively on D and K equipped with their usual topologies. The main result of this paper contains as a particular case the following statement: if T is a continuous linear map of H(K) into H(K) whose restriction to H(D) is continuous into H(D), then the restriction of T to is a continuous...