Results 21 to 30 of about 47,643 (302)

On approximation of homomorphisms of algebras of entire functions on Banach spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2019
It is known due to R. Aron, B. Cole and T. Gamelin that every complex homomorphism of the algebra of entire functions of bounded type on a Banach space $X$ can be approximated in some sense by a net of point valued homomorphism. In this paper we consider
H.M. Pryimak
doaj   +1 more source

Algebras of symmetric analytic functions on Cartesian powers of Lebesgue integrable in a power $p\in [1,+\infty)$ functions

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
The work is devoted to the study of Fréchet algebras of symmetric (invariant under the composition of every of components of its argument with any measure preserving bijection of the domain of components of the argument) analytic functions on Cartesian ...
T.V. Vasylyshyn
doaj   +1 more source

Analytic functions with values in a Frechet space [PDF]

open access: yesPacific Journal of Mathematics, 1962
where {Pn} is a sequence of continuous mutually annihilating projections on F whose ranges are all one-dimensional subspaces of F. This repre­ sentation reduces the study of , which are essentially scalar-valued analytic functions. We actually prove the stronger (and more useful) result that if { k. Expansions of vector-valued functions of a different
openaire   +3 more sources

On real analytic functions of unbounded type [PDF]

open access: yes, 2013
In this paper we prove several results on the existence of analytic functions on an infinite dimensional real Banach space which are bounded on some given collection of open sets and unbounded on others. In addition, we also obtain results on the density
Ponte Miramontes, María Del Socorro   +3 more
core   +1 more source

Linear Fractional Transformations of Nevanlinna Functions Associated with a Nonnegative Operator [PDF]

open access: yes, 2011
In the present paper a subclass of scalar Nevanlinna functions is studied, which coincides with the class of Weyl functions associated to a nonnegative symmetric operator of defect one in a Hilbert space.
Winkler, Henrik,   +15 more
core   +1 more source

One-loop Feynman integrals with Carlson hypergeometric functions [PDF]

open access: yesEPJ Web of Conferences, 2019
In this paper, we present analytic results for scalar one-loop two-, three-, four-point Feynman integrals with complex internal masses. The calculations are considered in general space-time dimension D for two- and three-point functions and D=4 for four ...
Phan Khiem Hong
doaj   +1 more source

A characterization of composition operators on algebras of analytic functions [PDF]

open access: yes, 2008
We give a characterization of composition operators between algebras of analytic functions on a Banach space. We show (under fairly general conditions) that they are precisely the multiplicative operators that are transposes of operators of between the ...
Carando, Daniel Germán
core   +1 more source

Application of symmetric analytic functions to spectra of linear operators

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
The paper is devoted to extension of the theory of symmetric analytic functions on Banach sequence spaces to the spaces of nuclear and $p$-nuclear operators on the Hilbert space.
I. Burtnyak   +4 more
doaj   +1 more source

Cyclicity of the adjoint of weighted composition operators on the Hilbert space of analytic functions [PDF]

open access: yes, 2011
summary:In this paper, we discuss the hypercyclicity, supercyclicity and cyclicity of the adjoint of a weighted composition operator on a Hilbert space of analytic ...
Hedayatian, Karim   +2 more
core   +1 more source

Tameness in Fréchet spaces of analytic functions [PDF]

open access: yesStudia Mathematica, 2016
Dedicated to the memory of Tosun Terzio\u{g}lu.
openaire   +3 more sources

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