Results 11 to 20 of about 223,909 (283)

Almost everywhere convergence of prolate spheroidal series [PDF]

open access: yesIllinois Journal of Mathematics, 2020
In this paper, we show that the expansions of functions from $L^p$-Paley-Wiener type spaces in terms of the prolate spheroidal wave functions converge almost everywhere for ...
Philippe Jaming, Michael Speckbacher
semanticscholar   +5 more sources

Order convergence and convergence almost everywhere revisited [PDF]

open access: yes, 2010
In Analysis two modes of non-topological convergence are interesting: order convergence and convergence almost everywhere. It is proved here that oder convergence of sequences can be induced by a limit structure, even a finest one, whenever it is ...
Preuß, Gerhard
core   +3 more sources

Wavelets: convergence almost everywhere [PDF]

open access: yesMathematical communications, 1996
It has been proved in [7], using the Carleson-Hunt theorem on the pointwise convergence of Fourier series, that the wavelet inversion formula is valid pointwise for all L^p -functions, and also without restrictions on ...
H. Šikić
core   +5 more sources

On almost-everywhere convergence of Malmquist-Takenaka Series [PDF]

open access: yesJournal of Functional Analysis, 2021
We prove L P bounds for the maximal partial sum operator of the Malmquist- Takenaka series under additional assumptions on the zeros of the Mobius transforms. We locate the problem in the time-frequency setting and, in particular, we connect it to the polynomial Carleson theorem.
G. Mnatsakanyan
semanticscholar   +3 more sources

Some applications of the Menshov–Rademacher theorem

open access: yesComptes Rendus. Mathématique, 2021
Given a sequence $(X_n)$ of real or complex random variables and a sequence of numbers $(a_n)$, an interesting problem is to determine the conditions under which the series $\sum _{n=1}^\infty a_n X_n$ is almost surely convergent.
Mukeru, Safari
doaj   +1 more source

Generalization and new proof for almost everywhere convergence to imply local convergence in measure [PDF]

open access: yesJournal of Interdisciplinary Mathematics, 2020
With a new proof approach we prove in a more general setting the classical convergence theorem that almost everywhere convergence of measurable functions on a finite measure space implies convergence in measure.
Yu-Lin Chou
semanticscholar   +1 more source

Almost everywhere convergence and divergence of Cesàro means with varying parameters of Walsh–Fourier series

open access: yesArabian Journal of Mathematics, 2021
In the present paper, we prove the almost everywhere convergence and divergence of subsequences of Cesàro means with zero tending parameters of Walsh–Fourier series.
G. Gát, U. Goginava
semanticscholar   +1 more source

Global convergence of successive approximations of the Darboux problem for partial functional differential equations with infinite delay [PDF]

open access: yesOpuscula Mathematica, 2014
We consider the Darboux problem for the hyperbolic partial functional differential equation with infinite delay. We deal with generalized (in the "almost everywhere" sense) solutions of this problem.
Tomasz Człapiński
doaj   +1 more source

ON \(\Lambda\)-CONVERGENCE ALMOST EVERYWHERE OF MULTIPLE TRIGONOMETRIC FOURIER SERIES

open access: yesUral Mathematical Journal, 2017
We consider one type of convergence of multiple trigonometric Fourier series intermediate between the convergence over cubes and the \(\lambda \)-convergence for \(\lambda >1\).
Nikolai Yu. Antonov
doaj   +1 more source

Almost everywhere convergence of inverse Fourier transforms [PDF]

open access: yesProceedings of the American Mathematical Society, 2005
We show that if log ⁡ ( 2 − Δ ) f ∈ L 2 ( R d ) \log (2-\Delta )f\in L^2({\mathbb R}^d) , then the inverse Fourier transform of f f converges ...
Colzani, L, Meaney, C, PRESTINI, ELENA
openaire   +3 more sources

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