Results 11 to 20 of about 274,119 (324)
Hyponormal differential operators with discrete spectrum
Opuscula Mathematica, 2010 In this work, we first describe all the maximal hyponormal extensions of a minimal operator generated by a linear differential-operator expression of the first-order in the Hilbert space of vector-functions in a finite interval. Next, we investigate the discreteness of the spectrum and the asymptotical behavior of the modules of the eigenvalues for ...
Zameddin I. İsmailov, Erdal Ünlüyol
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Multilinear analysis for discrete and periodic pseudo-differential operators in Lp-spaces
Revista Integración, 2018 In this note we announce our investigation on the Lp properties for periodic and discrete multilinear pseudo-differential operators. First, we review the periodic analysis of multilinear pseudo-differential operators by showing classical multilinear ...
Duván Cardona, Vishvesh Kumar
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Monotone Discretization of Anisotropic Differential Operators Using Voronoi’s First Reduction
Constructive Approximation, 2023 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Frédéric Bonnans +2 more
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Differential EquationsFor an ordinary differential equation with a fractional discretely distributed differentiation operator, the Naimark problem is studied, where the boundary conditions are specified in the form of linear functionals. This allows us to cover a fairly wide class of linear local and nonlocal conditions.
Л. Х. Гадзова
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Discrete differential operators on polygonal meshes [PDF]
ACM Transactions on Graphics, 2020 Geometry processing of surface meshes relies heavily on the discretization of differential operators such as gradient, Laplacian, and covariant derivative. While a variety of discrete operators over triangulated meshes have been developed and used for decades, a similar construction over polygonal meshes remains far less explored despite the prevalence
de Goes, Fernando +2 more
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Fractal and Fractional, 2023 The fractional Laplacian operator is a very important fractional operator that is often used to describe several anomalous diffusion phenomena. In this paper, we develop some numerical schemes, including a finite difference scheme and finite volume ...
Junjie Wang, Shoucheng Yuan, Xiao Liu
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The mathematical characteristic of the fifth order Laplace contour filters used in digital image processing [PDF]
Advances in Geodesy and Geoinformation, 2022 The Laplace operator is a differential operator which is used to detect edges of objects in digital images. This paper presents the properties of the most commonly used fifth-order pixels Laplace filters including the difference schemes used to derive ...
Ireneusz Winnicki +3 more
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Discretizing Laplace–Beltrami Operator from Differential Quantities [PDF]
Communications in Mathematics and Statistics, 2013 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Ruimin +3 more
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Spectral Analysis of Non-selfadjoint Second Order Difference Equation with Operator Coefficient
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020 In this paper, we consider the discrete Sturm-Liouville operator generated by second order difference equation with non-selfadjoint operator coefficient.
Esra Kır Arpat, Gökhan Mutlu
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On Estimating Differential Conductance from Noisy I-V Measurements in Delineating Device Parameters [PDF]
Acta Electrotechnica et Informatica, 2017 Differential conductance is a key to characterizing a solid-state device. Estimation of differential conductance from current-voltage characteristic curve amounts to estimate the first order derivative from a discrete set of current-voltage measurements ...
Indrajit G. ROY
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