Analysis on the Heisenberg Group and Estimates for Functions in Hardy Classes of Several Complex Variables.
Analysis on the unit ball and on the simplex.
Analytic aspects of quasiconformality.
Analytic capacity, Calderón-Zygmund operators, and rectifiability
For K ⊂ C compact, we say that K has vanishing analytic capacity (or γ(K) = 0) when all bounded analytic functions on CK are constant. We would like to characterize γ(K) = 0 geometrically. Easily, γ(K) > 0 when K has Hausdorff dimension larger than 1, and γ(K) = 0 when dim(K) < 1. Thus only the case when dim(K) = 1 is interesting. So far there is no characterization of γ(K) = 0 in general, but the special case when the Hausdorff measure H1(K) is finite was recently settled. In this...
Analytic dependence of orthogonal polynomials.
Anisotropic Besov spaces and approximation numbers of traces on related fractal sets.
This paper deals with approximation numbers of the compact trace operator of an anisotropic Besov space into some Lp-space,trΓ: Bpps,a (Rn) → Lp(Γ), s > 0, 1 < p < ∞,where Γ is an anisotropic d-set, 0 < d < n. We also prove homogeneity estimates, a homogeneous equivalent norm and the localization property in Bpps,a.
Anisotropic classes of homogeneous pseudodifferential symbols
We define homogeneous classes of x-dependent anisotropic symbols in the framework determined by an expansive dilation A, thus extending the existing theory for diagonal dilations. We revisit anisotropic analogues of Hörmander-Mikhlin multipliers introduced by Rivière [Ark. Mat. 9 (1971)] and provide direct proofs of their boundedness on Lebesgue and Hardy spaces by making use of the well-established Calderón-Zygmund theory on spaces of homogeneous type. We then show that x-dependent symbols in...
Anisotropic Hölder and Sobolev spaces for hyperbolic diffeomorphisms
We study spectral properties of transfer operators for diffeomorphisms on a Riemannian manifold . Suppose that is an isolated hyperbolic subset for , with a compact isolating neighborhood . We first introduce Banach spaces of distributions supported on , which are anisotropic versions of the usual space of functions and of the generalized Sobolev spaces , respectively. We then show that the transfer operators associated to and a smooth weight extend boundedly to these spaces, and...
Anisotropic symmetrization
Antisymmetric orbit functions.
Anwendnng der Fourier'schen Reihe auf die Theorie der Functionen einer complexen Veränderlichen
Anwendung einer zahlengeometrischen Methode von C.L. Siegel auf Probleme der Analysis.
Appell orthogonal polynomials on the unit circle
Appendix on return-time sequences
Application Leindler spaces to the real interpolation method.
Application of Bessel coefficients in approximative expressing of collectives
Applications of P-adic generalized functions and approximations by a system of P-adic translations of a function.
Applicationsof Generalized Perron Trees to Maximal Functions and Density Bases.
Applied mathematics meets signal processing.
Approach regions for the square root of the Poisson kernel and boundary functions in certain Orlicz spaces
If the Poisson integral of the unit disc is replaced by its square root, it is known that normalized Poisson integrals of and weak boundary functions converge along approach regions wider than the ordinary nontangential cones, as proved by Rönning and the author, respectively. In this paper we characterize the approach regions for boundary functions in two general classes of Orlicz spaces. The first of these classes contains spaces having the property , . The second contains spaces that...