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Items for "universal functions"

Universal overconvergence of homogeneous expansions of harmonic functions

On certain domains of Euclidean space, we establish the existence of harmonic functions, which are universal in the sense that their Taylor polynomials approximate all plausibly approximable functions in the complement of the domain.

Keywords: universal functions, overconvergence

03/2006 | Analysis, Oldenbourg Wissenschaftsverlag
Universal Taylor series on non-simply connected domains

In the present paper, we investigate the existence of universal Taylor series on certain non-simply connected domains...

Keywords: universal functions, universal Taylor series, Hadamard-Ostrowski gaps

03/2006 | Analysis, Oldenbourg Wissenschaftsverlag
A Liouville-type result for lacunary power series and converse results for universal holomorphic functions

A Liouville-type result is proved for holomorphic functions having lacunary power series with restricted growth for a subsequence of the partial sums...

Keywords: Liouville theorem, lacunary power series, universal functions

03/2006 | Analysis, Oldenbourg Wissenschaftsverlag
Universal Taylor series on open subsets of Rn

In the case of the complex plane, several notions of universal Taylor series have been introduced, ([10, 2, 19, 20])...

Keywords: universal functions, generic property, Taylor series

03/2006 | Analysis, Oldenbourg Wissenschaftsverlag
Universal (pluri)subharmonic functions

In this note, we establish the existence of universal subharmonic functions on Rn and of universal plurisubharmonic functions on Cn.

Keywords: universal functions, plurisubharmonic functions, subharmonic functions

02/2007 | Analysis, Oldenbourg Wissenschaftsverlag