Results 11 to 20 of about 1,225,050 (328)
Pointwise Convergence of Noncommutative Fourier Series [PDF]
Memoirs of the American Mathematical Society, 2019 This paper is devoted to the study of pointwise convergence of Fourier series for group von Neumann algebras and quantum groups. It is well-known that a number of approximation properties of groups can be interpreted as summation methods and mean ...
G. Hong, Simeng Wang, Xumin Wang
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Pointwise and Uniform Convergence of Fourier Extensions [PDF]
Constructive Approximation, 2018 Fourier series approximations of continuous but nonperiodic functions on an interval suffer the Gibbs phenomenon, which means there is a permanent oscillatory overshoot in the neighborhoods of the endpoints.
M. Webb, Vincent Coppé, D. Huybrechs
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ON POINTWISE CONVERGENCE OF SCHRÖDINGER MEANS [PDF]
Mathematika, 2020 For functions in the Sobolev space Hs and decreasing sequences tn → 0 we examine convergence almost everywhere of the generalized Schrödinger means on the real line, given by Sf(x, tn) = exp(itn(−∂xx))f(x); here a > 0, a 6= 1.
Eva Dimou, A. Seeger
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Pointwise Convergence of the Schrödinger Flow [PDF]
International Mathematics Research Notices, 2020 In this paper we address the question of the pointwise almost everywhere limit of nonlinear Schrödinger flows to the initial data, in both the continuous and the periodic settings.
E. Compaan, R. Lucà, G. Staffilani
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A Relation Between Pointwise Convergence of Functions and Convergence of Functionals [PDF]
Proceedings of the American Mathematical Society, 1983 We show that if { f n
H. Brezis, E. Lieb
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Density topology and pointwise convergence [PDF]
Applied General Topology, 2003 We shall show that the space of all approximately continuous functions with the topology of pointwise convergence is not homeomorphic to its category analogue.
Wladyslaw Wilczynski
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Pointwise Dynamics Under Orbital Convergence [PDF]
Bulletin of the Brazilian Mathematical Society, New Series, 2019 We obtain sufficient conditions under which the limit of a sequence of functions exhibits a particular dynamical behaviour at a point like expansivity, shadowing, mixing, sensitivity and transitivity.
A. G. Khan, P. Das, T. Das
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On pointwise convergence of bivariate nonlinear singular integral operators
Kuwait Journal of Science, 2017 In this paper, we present some theorems on pointwise convergence and the rate of pointwise convergence for the family of nonlinear bivariate singular integral operators of the following form: whereis a real valued and integrable function on a bounded ...
Gumrah Uysal +2 more
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Boundary Strichartz estimates and pointwise convergence for orthonormal systems [PDF]
Transactions of the London Mathematical Society, 2023 We consider maximal estimates associated with fermionic systems. Firstly, we establish maximal estimates with respect to the spatial variable. These estimates are certain boundary cases of the many‐body Strichartz estimates pioneered by Frank, Lewin ...
Neal Bez +2 more
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Pointwise Convergence of the Klein–Gordon Flow
SIAM Journal on Mathematical AnalysisWe consider the PDEs version of the Carleson problem in the context of the cubic nonlinear Klein-Gordon equation. This means that we aim to establish the lowest regularity class for which one has almost everywhere pointwise convergence of the solutions to the initial data, as $t \to 0$.
Renato Lucà, Pablo Merino
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