Currently displaying 1 – 12 of 12

Showing per page

Order by Relevance | Title | Year of publication

Generalized eigenfunction expansions and spectral decompositions

Mihai Putinar — 1997

Banach Center Publications

The paper relates several generalized eigenfunction expansions to classical spectral decomposition properties. From this perspective one explains some recent results concerning the classes of decomposable and generalized scalar operators. In particular a universal dilation theory and two different functional models for related classes of operators are presented.

On dense ideals in spaces of analytic functions

Mihai Putinar — 1994

Annales de l'institut Fourier

One proves the density of an ideal of analytic functions into the closure of analytic functions in a L p ( μ ) -space, under some geometric conditions on the support of the measure μ and the zero variety of the ideal.

A natural localization of Hardy spaces in several complex variables

Mihai PutinarRoland Wolff — 1997

Annales Polonici Mathematici

Let H²(bΩ) be the Hardy space of a bounded weakly pseudoconvex domain in n . The natural resolution of this space, provided by the tangential Cauchy-Riemann complex, is used to show that H²(bΩ) has the important localization property known as Bishop’s property (β). The paper is accompanied by some applications, previously known only for Bergman spaces.

Multivariate moment problems : geometry and indeterminateness

Mihai PutinarClaus Scheiderer — 2006

Annali della Scuola Normale Superiore di Pisa - Classe di Scienze

The most accurate determinateness criteria for the multivariate moment problem require the density of polynomials in a weighted Lebesgue space of a generic representing measure. We propose a relaxation of such a criterion to the approximation of a single function, and based on this condition we analyze the impact of the geometry of the support on the uniqueness of the representing measure. In particular we show that a multivariate moment sequence is determinate if its support has dimension one and...

Reconstruction of algebraic sets from dynamic moments

Gabriela PutinarMihai Putinar — 2007

Annales de la faculté des sciences de Toulouse Mathématiques

We discuss an exact reconstruction algorithm for time expanding semi-algebraic sets given by a single polynomial inequality. The theoretical motivation comes from the classical L -problem of moments, while some possible applications to 2D fluid moving boundaries are sketched. The proofs rely on an adapted co-area theorem and a Hankel form minimization.

Page 1

Download Results (CSV)