Results 21 to 30 of about 1,130,981 (257)
Cheeger‐like inequalities for the largest eigenvalue of the graph Laplace operator [PDF]
Journal of Graph Theory, 2019 We define a new Cheeger‐like constant for graphs and we use it for proving Cheeger‐like inequalities that bound the largest eigenvalue of the normalized Laplace operator.
J. Jost, R. Mulas
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Discrete Laplace Operator Estimation for Dynamic 3D Reconstruction [PDF]
IEEE International Conference on Computer Vision, 2019 We present a general paradigm for dynamic 3D reconstruction from multiple independent and uncontrolled image sources having arbitrary temporal sampling density and distribution.
Xiangyu Xu, Enrique Dunn
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A QUANTUM APPROACH TO LAPLACE OPERATORS [PDF]
Infinite Dimensional Analysis, Quantum Probability and Related Topics, 2006 In this paper, a theory of stochastic processes generated by quantum extensions of Laplacians is developed. Representations of the associated heat semigroups are discussed by means of suitable time shifts. In particular the quantum Brownian motion associated to the Lévy–Laplacian is obtained as the usual Volterra–Gross Laplacian using the Cesàro ...
Luigi Accardi +2 more
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Fractal and Fractional, 2023 In this paper, we investigate properties of solutions to a space-time fractional variable-order conformable nonlinear differential equation with a generalized tempered fractional Laplace operatorby using the maximum principle. We first establish some new
Tingting Guan, Lihong Zhang
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Spectral properties of the Neumann-Laplace operator in quasiconformal regular domains [PDF]
Contemporary Mathematics, 2017 In this paper we study spectral properties of the Neumann-Laplace operator in planar quasiconformal regular domains $\Omega\subset\mathbb R^2$. This study is based on the quasiconformal theory of composition operators on Sobolev spaces.
V. Gol'dshtein +2 more
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Defective Laplacians and paradoxical phenomena in crowd motion modeling
Comptes Rendus. Mécanique, 2023 In both continuous and discrete settings, Laplace operators appear quite commonly in the modeling of natural phenomena, in several context: diffusion, heat propagation, porous media, fluid flows through pipes, electricity....
Maury, Bertrand
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The formal Laplace-Borel transform of Fliess operators and the composition product
International Journal of Mathematics and Mathematical Sciences, 2006 The formal Laplace-Borel transform of an analytic integral operator, known as a Fliess operator, is defined and developed. Then, in conjunction with the composition product over formal power series, the formal Laplace-Borel transform is shown to provide ...
Yaqin Li, W. Steven Gray
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Medical Image Enhancement Based on Laplace Transform, Sobel Operator and Histogram Equalization
Academic Journal of Computing & Information Science, 2022 : Medical image enhancement is one of the most widely used medical image processing techniques in medical domain. Its purpose is to improve the visual effect of the image and facilitate the analysis and understanding of the image by human or machine. The
X. Ren, Songning Lai
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Laplace Operators in Gamma Analysis [PDF]
, 2016 Let $\mathbb K(\mathbb R^d)$ denote the cone of discrete Radon measures on $\mathbb R^d$. The gamma measure $\mathcal G$ is the probability measure on $\mathbb K(\mathbb R^d)$ which is a measure-valued L vy process with intensity measure $s^{-1}e^{-s}\,ds$ on $(0,\infty)$.
Hagedorn, D. +3 more
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Laplace and Hua Luogeng operators
Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika, 2020 We define holomorphic and pluri-harmonic functions in classical E. Cartan domains of the first type, and research Laplace and Hua Luogeng operators. We find a connection between these operators.
G. Khudayberganov +2 more
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