Results 21 to 30 of about 546,655 (283)

Laplace-Beltrami operator on Digital Curves

open access: yes, 2016
National audienceMany problems in image analysis, digital processing and shape optimization are expressed as variational problems and involve the discritization of laplacians.
Roussillon, Tristan   +3 more
core   +6 more sources

Maximum Principle for Variable-Order Fractional Conformable Differential Equation with a Generalized Tempered Fractional Laplace Operator

open access: yesFractal 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
doaj   +1 more source

Defective Laplacians and paradoxical phenomena in crowd motion modeling

open access: yesComptes 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
doaj   +1 more source

The formal Laplace-Borel transform of Fliess operators and the composition product

open access: yesInternational 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
doaj   +1 more source

The Higher Spin Laplace Operator [PDF]

open access: yesPotential Analysis, 2016
This paper deals with a certain class of second-order conformally invariant operators acting on functions taking values in particular (finite-dimensional) irreducible representations of the orthogonal group. These operators can be seen as a generalisation of the Laplace operator to higher spin as well as a second order analogue of the Rarita-Schwinger ...
Hendrik De Bie   +2 more
openaire   +4 more sources

Problems with laplace operator on topological surfaces

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
This work highlights the problems related to the Laplace operator on topological surfaces such as Mobius strip, Klein bottle and torus. In particular, we discuss oscillations on the surface of the Mobius strip, eigenfunctions and eigenvalues of the ...
Mikhail Y Shalaginov   +2 more
doaj   +3 more sources

A note on maximal operators related to Laplace-Bessel differential operators on variable exponent Lebesgue spaces

open access: yesOpen Mathematics, 2021
In this paper, we consider the maximal operator related to the Laplace-Bessel differential operator (BB-maximal operator) on Lp(⋅),γ(Rk,+n){L}_{p\left(\cdot ),\gamma }\left({{\mathbb{R}}}_{k,+}^{n}) variable exponent Lebesgue spaces.
Kaya Esra
doaj   +1 more source

A Note on the Triple Laplace Transform and Its Applications to Some Kind of Third-Order Differential Equation

open access: yesAbstract and Applied Analysis, 2013
We introduced a relatively new operator called the triple Laplace transform. We presented some properties and theorems about the relatively new operator. We examine the triple Laplace transform of some function of three variables.
Abdon Atangana
doaj   +1 more source

Laplace and Hua Luogeng operators

open access: yesIzvestiya 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
openaire   +2 more sources

Modified Edge Detector for Coloured Images

open access: yesIraqi Journal for Computers and Informatics, 2002
In this paper, a study of the role nf clour information in detecting the edges of an image was conducted Therefore, different colour spaces with components corresponding to the attribute tumance, hue, and saturation le., VHS, and LUVI were implemented ...
Ban Abdul-Rahman Al-Jubaury   +2 more
doaj   +1 more source

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