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Gram Points in the Universality of the Dirichlet Series with Periodic Coefficients

open access: yesMathematics, 2023
Let a={am:m∈N} be a periodic multiplicative sequence of complex numbers and L(s;a), s=σ+it a Dirichlet series with coefficients am. In the paper, we obtain a theorem on the approximation of non-vanishing analytic functions defined in the strip 1 ...
Darius Šiaučiūnas, Monika Tekorė
doaj   +1 more source

Convergence of Functions: Equi-Semicontinuity [PDF]

open access: yesTransactions of the American Mathematical Society, 1983
We study the relationship between various types of convergence for extended real-valued functionals engendered by the associated convergence of their epigraphs; pointwise convergence being treated as a special case. A condition of equi-semicontinuity is introduced and shown to be necessary and sufficient to allow the passage from one type of ...
Dolecki, Szymon   +2 more
openaire   +2 more sources

A relation between pointwise convergence of functions and convergence of functionals [PDF]

open access: yesProceedings of the American Mathematical Society, 1983
We show that if { f n } \left \{ {{f_n}} \right \} is a sequence of uniformly L p {L^p} -bounded functions on a measure space, and if f n
Brézis, Haïm, Lieb, Elliott H.
openaire   +2 more sources

Convergence of Weak*-Scalarly Integrable Functions

open access: yesAxioms, 2020
Let (Ω,F,μ) be a complete probability space, E a separable Banach space and E′ the topological dual vector space of E. We present some compactness results in LE′1E, the Banach space of weak*-scalarly integrable E′-valued functions.
Noureddine Sabiri, Mohamed Guessous
doaj   +1 more source

Joint Approximation of Analytic Functions by Shifts of Lerch Zeta-Functions

open access: yesMathematics, 2023
In this paper, we consider the simultaneous approximation of tuples of analytic functions by tuples of shifts of Lerch zeta-functions with arbitrary parameters.
Antanas Laurinčikas   +2 more
doaj   +1 more source

Uniform convergence of Green’s functions [PDF]

open access: yesComplex Variables and Elliptic Equations, 2018
6 ...
Kalmykov, Sergei, Kovalev, Leonid V.
openaire   +2 more sources

Lacunary Statistical Convergence in Measure for Double Sequences of Fuzzy Valued Functions

open access: yesJournal of Mathematics, 2021
Based on the concept of lacunary statistical convergence of sequences of fuzzy numbers, the lacunary statistical convergence, uniformly lacunary statistical convergence, and equi-lacunary statistical convergence of double sequences of fuzzy-valued ...
Ömer Kişi
doaj   +1 more source

$\mathcal{I}_2$-Uniform Convergence of Double Sequences of Functions In $2$-Normed Spaces

open access: yesCommunications in Advanced Mathematical Sciences, 2022
In this work, we discuss various types of $\mathcal{I}_2$-uniform convergence and equi-continuous for double sequences of functions. Also, we introduce the concepts of $\mathcal{I}_2$-uniform convergence, $\mathcal{I}_2^*$-uniform convergence, $\mathcal ...
Mukaddes Arslan   +2 more
doaj   +1 more source

On Multivariate Bernstein Polynomials

open access: yesMathematics, 2020
In this paper, we first revisit and bring together as a sort of survey, properties of Bernstein polynomials of one variable. Secondly, we extend the results from one variable to several ones, namely—uniform convergence, uniform convergence of the ...
Mama Foupouagnigni   +1 more
doaj   +1 more source

Periodic Korovkin Theorem via $P_{p}^{2}$-Statistical $\mathcal{A}$-Summation Process

open access: yesUniversal Journal of Mathematics and Applications, 2022
In the current research, we investigate and establish Korovkin-type approximation theorems for linear operators defined on the space of all $% 2\pi $-periodic and real valued continuous functions on $% %TCIMACRO{\U{211d} }% %BeginExpansion \mathbb{R ...
Kamil Demirci   +2 more
doaj   +1 more source

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