Results 1 to 10 of about 1,963 (90)

Approximate solution of Urysohn integral equations using the Adomian decomposition method. [PDF]

open access: yesScientificWorldJournal, 2014
We apply Adomian decomposition method (ADM) for obtaining approximate series solution of Urysohn integral equations. The ADM provides a direct recursive scheme for solving such problems approximately. The approximations of the solution are obtained in the form of series with easily calculable components. Furthermore, we also discuss the convergence and
Singh R, Nelakanti G, Kumar J, Kumar J.
europepmc   +2 more sources

A survey of Optimal Transport for Computer Graphics and Computer Vision

open access: yesComputer Graphics Forum, Volume 42, Issue 2, Page 439-460, May 2023., 2023
Abstract Optimal transport is a long‐standing theory that has been studied in depth from both theoretical and numerical point of views. Starting from the 50s this theory has also found a lot of applications in operational research. Over the last 30 years it has spread to computer vision and computer graphics and is now becoming hard to ignore.
Nicolas Bonneel, Julie Digne
wiley   +1 more source

A fast robust numerical continuation solver to a two‐dimensional spectral estimation problem

open access: yesIET Control Theory &Applications, Volume 16, Issue 9, Page 902-915, 11 June 2022., 2022
Abstract This paper presents a fast algorithm to solve a spectral estimation problem for two‐dimensional random fields. The latter is formulated as a convex optimization problem with the Itakura‐Saito pseudodistance as the objective function subject to the constraints of moment equations.
Bin Zhu, Jiahao Liu
wiley   +1 more source

Extended Newton‐type Method for Nonsmooth Generalized Equation under (n, α)‐point‐based Approximation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2022, Issue 1, 2022., 2022
Let X and Y be Banach spaces and Ω⊆X. Let f:Ω⟶Y be a single valued function which is nonsmooth. Suppose that F:X⇉2Y is a set‐valued mapping which has closed graph. In the present paper, we study the extended Newton‐type method for solving the nonsmooth generalized equation 0 ∈ f(x) + F(x) and analyze its semilocal and local convergence under the ...
M. Z. Khaton   +2 more
wiley   +1 more source

An enhanced feedforward flux weakening control for high‐speed permanent magnet machine drive applications

open access: yesIET Power Electronics, Volume 14, Issue 13, Page 2179-2193, 14 October 2021., 2021
Abstract Permanent magnet machines have been used in the high‐speed drive applications due to their high‐efficiency, high‐power‐density, and wide‐speed range characteristics. However, control of such high‐speed permanent magnet machines machine is always challenging and proper flux‐weakening controller design is essential to achieve high performance of
Xiaoyu Lang   +5 more
wiley   +1 more source

Spatially Inhomogeneous Evolutionary Games

open access: yesCommunications on Pure and Applied Mathematics, Volume 74, Issue 7, Page 1353-1402, July 2021., 2021
Abstract We introduce and study a mean‐field model for a system of spatially distributed players interacting through an evolutionary game driven by a replicator dynamics. Strategies evolve by a replicator dynamics influenced by the position and the interaction between different players and return a feedback on the velocity field guiding their motion ...
Luigi Ambrosio   +3 more
wiley   +1 more source

Consistent Inversion of Noisy Non‐Abelian X‐Ray Transforms

open access: yesCommunications on Pure and Applied Mathematics, Volume 74, Issue 5, Page 1045-1099, May 2021., 2021
Abstract For M a simple surface, the nonlinear statistical inverse problem of recovering a matrix field from discrete, noisy measurements of the SO(n)‐valued scattering data CΦ of a solution of a matrix ODE is considered (n ≥ 2). Injectivity of the map Φ ↦ CΦ was established by Paternain, Salo, and Uhlmann in 2012.
François Monard   +2 more
wiley   +1 more source

The convergence theorem for fourth-order super-Halley method in weaker conditions

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we establish the Newton-Kantorovich convergence theorem of a fourth-order super-Halley method under weaker conditions in Banach space, which is used to solve the nonlinear equations.
Lin Zheng
doaj   +1 more source

Notions of optimal transport theory and how to implement them on a computer [PDF]

open access: yes, 2017
This article gives an introduction to optimal transport, a mathematical theory that makes it possible to measure distances between functions (or distances between more general objects), to interpolate between objects or to enforce mass/volume ...
Levy, Bruno, Schwindt, Erica
core   +4 more sources

A numerical algorithm for $L_2$ semi-discrete optimal transport in 3D [PDF]

open access: yes, 2014
This paper introduces a numerical algorithm to compute the $L_2$ optimal transport map between two measures $\mu$ and $\nu$, where $\mu$ derives from a density $\rho$ defined as a piecewise linear function (supported by a tetrahedral mesh), and where ...
Levy, Bruno
core   +6 more sources

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