Results 1 to 10 of about 26,697 (199)
The Implicit Midpoint Procedures for Asymptotically Nonexpansive Mappings
The concept of asymptotically nonexpansive mappings is an important generalization of the class of nonexpansive mappings. Implicit midpoint procedures are extremely fundamental for solving equations involving nonlinear operators.
M. O. Aibinu, S. C. Thakur, S. Moyo
doaj +1 more source
The foremost aim of this paper is to suggest a local study for high order iterative procedures for solving nonlinear problems involving Banach space valued operators. We only deploy suppositions on the first-order derivative of the operator.
Ramandeep Behl +2 more
doaj +1 more source
Neighborhood filters and the decreasing rearrangement [PDF]
Nonlocal filters are simple and powerful techniques for image denoising. In this paper, we give new insights into the analysis of one kind of them, the Neighborhood filter, by using a classical although not very common transformation: the decreasing ...
Galiano, Gonzalo, Velasco, Julián
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Well posedness of an angiogenesis related integrodifferential diffusion model [PDF]
We prove existence and uniqueness of nonnegative solutions for a nonlocal in time integrodifferential diffusion system related to angiogenesis descriptions. Fundamental solutions of appropriately chosen parabolic operators with bounded coefficients allow
Carpio, Ana, Duro, Gema
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Preconditioned fully implicit PDE solvers for monument conservation [PDF]
Mathematical models for the description, in a quantitative way, of the damages induced on the monuments by the action of specific pollutants are often systems of nonlinear, possibly degenerate, parabolic equations. Although some the asymptotic properties
Berger A. E. +3 more
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The Magnus expansion and some of its applications [PDF]
Approximate resolution of linear systems of differential equations with varying coefficients is a recurrent problem shared by a number of scientific and engineering areas, ranging from Quantum Mechanics to Control Theory.
Abramowitz +235 more
core +6 more sources
2-D Prony-Huang Transform: A New Tool for 2-D Spectral Analysis [PDF]
This work proposes an extension of the 1-D Hilbert Huang transform for the analysis of images. The proposed method consists in (i) adaptively decomposing an image into oscillating parts called intrinsic mode functions (IMFs) using a mode decomposition ...
Borgnat, Pierre +4 more
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Parameter identification in a semilinear hyperbolic system [PDF]
We consider the identification of a nonlinear friction law in a one-dimensional damped wave equation from additional boundary measurements. Well-posedness of the governing semilinear hyperbolic system is established via semigroup theory and contraction ...
Cheng J +14 more
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Exact solutions of Dyson-Schwinger equations for iterated one-loop integrals and propagator-coupling duality [PDF]
The Hopf algebra of undecorated rooted trees has tamed the combinatorics of perturbative contributions, to anomalous dimensions in Yukawa theory and scalar $\phi^3$ theory, from all nestings and chainings of a primitive self-energy subdivergence. Here we
Bailey +23 more
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Analysis of Iterative Methods for the Steady and Unsteady Stokes Problem: Application to Spectral Element Discretizations [PDF]
A new and detailed analysis of the basic Uzawa algorithm for decoupling of the pressure and the velocity in the steady and unsteady Stokes operator is presented.
Maday, Yvon +3 more
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