Results 31 to 40 of about 618,275 (223)

Approximate converse theorem

open access: yesAsian Journal of Mathematics, 2015
The theme of this thesis is an "approximate converse theorem" for globally unramified cuspidal representations of PGL(n, A), n ≥ 1. For a given set of Langlands parameters for some places of Q, we can compute ε > 0 such that there exists a genuine globally unramified cuspidal representation, whose Langlands parameters are within ε of the given ones ...
openaire   +4 more sources

Universal approximation theorem for Dirichlet series

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
The paper deals with an extension theorem by Costakis and Vlachou on simultaneous approximation for holomorphic function to the setting of Dirichlet series, which are absolutely convergent in the right half of the complex plane.
O. Demanze, A. Mouze
doaj   +1 more source

Approximation Theorems Associated with Multidimensional Fractional Fourier Transform and Applications in Laplace and Heat Equations

open access: yesFractal and Fractional, 2022
In this paper, we establish two approximation theorems for the multidimensional fractional Fourier transform via appropriate convolutions. As applications, we study the boundary and initial problems of the Laplace and heat equations with chirp functions.
Yinuo Yang   +3 more
doaj   +1 more source

Płoski approximation theorem

open access: yesAnnales Polonici Mathematici
The aim of this paper is to review how some approximation results in commutative algebra are being used to construct equisingular deformations of singularities. The first example of such an approximation result appeared in A. Płoski’s PhD thesis.
Parusiński, Adam, Rond, Guillaume
openaire   +2 more sources

An Approximate Nerve Theorem

open access: yesFoundations of Computational Mathematics, 2017
Typos and example achieving lower bound fixed, decomposition of interleaving ...
Govc, D, Skraba, P
openaire   +3 more sources

Modified Bernstein–Durrmeyer Type Operators

open access: yesMathematics, 2022
We constructed a summation–integral type operator based on the latest research in the linear positive operators area. We establish some approximation properties for this new operator.
Arun Kajla, Dan Miclǎuş
doaj   +1 more source

Schlichting’s theorem for approximate subgroups [PDF]

open access: yesArchiv der Mathematik, 2020
We prove Schlichting's theorem for approximate subgroups: if $\mathcal{X}$ is a uniform family of commensurable approximate subgroups in some ambient group, then there exists an invariant approximate subgroup commensurable with $\mathcal{X}$.
openaire   +4 more sources

An Adaptive Derivative Estimator for Fault-Detection Using a Dynamic System with a Suboptimal Parameter

open access: yesAlgorithms, 2019
This paper deals with an approximation of a first derivative of a signal using a dynamic system of the first order. After formulating the problem, a proposition and a theorem are proven for a possible approximation structure, which consists of a dynamic ...
Manuel Schimmack, Paolo Mercorelli
doaj   +1 more source

Moments of Real, Respectively of Complex Valued Functions, Approximation and Applications

open access: yesMathematics
The first aim of this study is to point out new aspects of approximation theory applied to a few classes of holomorphic functions via Vitali’s theorem.
Cristian Octav Olteanu
doaj   +1 more source

Generalized Weighted Statistical Convergence for Double Sequences of Fuzzy Numbers and Associated Korovkin-Type Approximation Theorem

open access: yesJournal of Function Spaces, 2020
We define the notions of weighted λ,μ-statistical convergence of order γ1,γ2 and strongly weighted λ,μ-summability of γ1,γ2 for fuzzy double sequences, where ...
Abdullah Alotaibi
doaj   +1 more source

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