Results 21 to 30 of about 627,768 (311)
Proceedings of the American Mathematical Society, 1986 In this paper we show that if K ( x ) = Ω ( x ) / | x | n K(x) = \Omega (x)/{\left | x \right |^n} is a Calderón-Zygmund kernel, where Ω
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International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley +1 more source
Multilinear singular integrals [PDF]
Publicacions Matemàtiques, 2002 We survey the thoery of multilinear singular integral operators with modulation symmetry. The basic example for this theory is the bilinear Hilbert transform and its multilinear variants. We outline a proof of boundedness of Carleson's operator which shows the close connection of this operator to multilinear singular integrals.
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Singular integrals and rectifiability [PDF]
Publicacions Matemàtiques, 2002 We shall discuss singular integrals on lower dimensional subsets of Rn. A survey of this topic was given in [M4]. The first part of this paper gives a quick review of some results discussed in [M4] and a survey on some newer results and open problems. In the second part we prove some results on the Riesz kernels in Rn. As far I know, they have not been
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Singular integrals with angular integrability
Proceedings of the American Mathematical Society, 2016 In this note we prove a class of sharp inequalities for singular integral operators in weighted Lebesgue spaces with angular integrability.
CACCIAFESTA, FEDERICO, Lucà, Renato
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The singular values and vectors of low rank perturbations of large rectangular random matrices [PDF]
, 2011 In this paper, we consider the singular values and singular vectors of finite, low rank perturbations of large rectangular random matrices. Specifically, we prove almost sure convergence of the extreme singular values and appropriate projections of the ...
Florent Benaych-georges +2 more
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Singular integral operators on tent spaces [PDF]
, 2012 We extend the recent results concerning boundedness of the maximal regularity operator on tent spaces. This leads us to develop a singular integral operator theory on tent spaces. Such operators have operator-valued kernels.
Auscher, Pascal +3 more
core +3 more sources
Gauge-Invariant Operators for Singular Knots in Chern-Simons Gauge Theory [PDF]
, 1997 We construct gauge invariant operators for singular knots in the context of Chern-Simons gauge theory. These new operators provide polynomial invariants and Vassiliev invariants for singular knots.
Akutsu +57 more
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Bounds for singular fractional integrals and related Fourier integral operators [PDF]
, 2002 We prove sharp L^p-L^q endpoint bounds for singular fractional integral operators and related Fourier integral operators, under the nonvanishing rotational curvature assumption.Comment: 30 ...
Seeger, Andreas, Wainger, Stephen
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On approximation of two-dimensional potential and singular operators [PDF]
E-Journal of Analysis and Applied Mathematics, 2019 The purpose of this paper is the construction of second-order of accuracy quadrature formulas for the numerical calculation of the Vekua types two-dimensional potential and singular integral operators in the unit disk of complex plane.
Charyyar Ashyralyyev, Sedanur Efe
doaj +1 more source