Results 111 to 120 of about 3,206 (190)

Numerical investigation of Differential Biological-Models via GA-Kansa Method Inclusive Genetic Strategy

open access: yes, 2017
In this paper, we use Kansa method for solving the system of differential equations in the area of biology. One of the challenges in Kansa method is picking out an optimum value for Shape parameter in Radial Basis Function to achieve the best result of ...
Fallah, Mohammad Kazem   +2 more
core  

Determinantal point process models on the sphere

open access: yes, 2015
We consider determinantal point processes on the $d$-dimensional unit sphere $\mathbb S^d$. These are finite point processes exhibiting repulsiveness and with moment properties determined by a certain determinant whose entries are specified by a so ...
Møller, Jesper   +3 more
core  

Short arc reduction of radar altimetry computer program [PDF]

open access: yes
The Air Force Geophysics Laboratory computer program SARRA (Short Arc Reduction of Radar Altimetry) has been used for geoid determination with altimetric observations from the GEOS-3 satellite.
Hadgigeorge, G., Trotter, J.
core   +1 more source

Fractional Black–Scholes Under Memory Effects: A Sixth-Order Local RBF–FD Scheme with Integrated Multiquadric Kernels

open access: yesAxioms
In this work, a high-order meshless framework is developed for the numerical resolution of the temporal–fractional Black–Scholes equation arising in option pricing with long-memory effects.
Yutong Li   +5 more
doaj   +1 more source

Models for extracting vertical crustal movements from leveling data [PDF]

open access: yes
Various adjustment strategies are being used in North America to obtain vertical crustal movements from repeated leveling. The more successful models utilize polynomials or multiquadric analysis to describe elevation change with a velocity surface. Other
Holdahl, S. H.
core   +1 more source

Univariate Multiquadric Approximation: Reproduction of Linear Polynomials [PDF]

open access: yes, 1990
It is known that multiquadric radial basis function approximations can reproduce low order polynomials when the centres form an infinite regular lattice. We make a start on the interesting question of extending this result in a way that allows the centres to be in less restrictive positions.
openaire   +1 more source

Comparative Analysis of Selected Geostatistical Methods for Bottom Surface Modeling. [PDF]

open access: yesSensors (Basel), 2023
Biernacik P   +2 more
europepmc   +1 more source

MULTIQUADRIC QUASI-INTERPOLATION METHOD FOR FRACTIONAL INTEGRAL-DIFFERENTIAL EQUATIONS

open access: yesJournal of Applied Analysis & Computation
Summary: In this paper, Multiquadric quasi-interpolation method is used to approximate fractional integral equations and fractional differential equations. Firstly, we construct two operators for approximating the Hadamard integral-differential equation based on quasi interpolators, and verify their properties and order of convergence.
Wang, Ziqiang   +3 more
openaire   +1 more source

Modeling anomalous transport in fractal porous media: A study of fractional diffusion PDEs using numerical method

open access: yesNonlinear Engineering
Fractional diffusion partial differential equation (PDE) models are used to describe anomalous transport phenomena in fractal porous media, where traditional diffusion models may not be applicable due to the presence of long-range dependencies and non ...
Ahmad Imtiaz   +4 more
doaj   +1 more source

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