Results 211 to 220 of about 497,921 (244)
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On the Bessel Heat Equation Related to the Bessel Diamond Operator

Acta Applicandae Mathematicae, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Saglam, Aziz   +2 more
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Schauder estimates for Bessel operators

Forum Mathematicum, 2023
Abstract We prove Schauder estimates for elliptic and parabolic problems governed by the degenerate operator ℒ =
Giorgio Metafune   +2 more
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On Inversion Of Bessel Potentials Associated With The Laplace–Bessel Differential Operator

Acta Mathematica Hungarica, 2002
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Aliev, I. A., Uyhan-Bayrakci, S.
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Bessel-Type Operators with an Inner Singularity

Integral Equations and Operator Theory, 2012
The authors study the Bessel-type differential equation \[ -y''+\frac{\frac{\alpha}{2}\left(\frac{\alpha}{2}+1\right)}{(x-1)^2}y=\lambda\, y,\quad 0\leq x\leq a, \] where \(a>1\). Note that this equation has an inner singularity at \(x=1\). If \(\alpha\geq 1\), then this singularity is in the limit point case at \(x=1\) from both sides, and hence ...
Brown, B. Malcolm   +2 more
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Eigenvalue asymptotics for Dirac–Bessel operators

Journal of Mathematical Physics, 2016
In this paper, we establish the eigenvalue asymptotics for non-self-adjoint Dirac–Bessel operators on (0, 1) with arbitrary real angular momenta and square integrable potentials, which gives the first step for solution of the related inverse problem. The approach is based on a careful examination of the corresponding characteristic functions and their ...
Hryniv, Rostyslav O.   +1 more
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Spectral Multipliers for Multidimensional Bessel Operators

Journal of Fourier Analysis and Applications, 2010
The paper treats the problem of spectral multipliers associated with the multidimensional Bessel operator \[ \Delta_\lambda=-\sum_{j=1}^n \Big(\frac{\partial^2}{\partial x_j^2}+\frac{2\lambda_j}{x_j}\frac{\partial}{\partial x_j}\Big), \] which is symmetric and positive in \(L^2(\mu_\lambda):=L^2((0,\infty)^n,\,\mu_\lambda)\), where \(d\mu_\lambda(x ...
Betancor, J. J.   +2 more
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On the Bessel diamond and the nonlinear Bessel diamond operator related to the Bessel wave equation

Nonlinear Analysis: Theory, Methods & Applications, 2008
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Sarikaya, Mehmet Zeki   +1 more
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Bessel integral operators

Integral Transforms and Special Functions, 2014
We define an algebra of linear operators whose kernels are essentially Bessel functions. These operators act on spaces of entire functions of exponential type and are endowed with a complete and explicit symbolic calculus that we will describe. We explain how these operators were designed to be models for Toeplitz operators on the unit sphere in the n ...
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Estimation of Bessel Operator Inversion by Shearlet

2011
Curvelets are used to deal with the inverse problem of recovering a function f from noisy Bessel data B α f by Candes and Donoho. Motivated by the work of Colona, Easley and Labate, we solve the same problem by shearlets. It turns out that our method attains the mean square error convergence to O(log(\(\varepsilon^{-1})\varepsilon^{\frac{2}{\frac{3}{2}+
Lin Hu, Youming Liu
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Family of Bessel Operator Functions

Journal of Mathematical Sciences
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