Results 11 to 20 of about 1,150,426 (301)
Nonlinear effects in the regularity problems for infinite dimensional evolutions of unbounded spin systems [PDF]
Condensed Matter Physics, 2006 We study the regularity problems for unbounded spin systems of anharmonic oscillators, that approximate multi-dimensional Euclidean field theories. The main attention is paid to the effect of anharmonism on the C∞-regularity properties of evolutional ...
Alexander Val. Antoniouk +1 more
doaj +2 more sources
Regularized nonlinear acceleration [PDF]
Mathematical Programming, 2018 We describe a convergence acceleration technique for unconstrained optimization problems. Our scheme computes estimates of the optimum from a nonlinear average of the iterates produced by any optimization method. The weights in this average are computed via a simple linear system, whose solution can be updated online.
Scieur, Damien +2 more
openaire +6 more sources
p-Regular nonlinear dynamics [PDF]
Doklady Mathematics, 2014 This article is devoted to the investigation of a periodic problem of the following form: \[ \dot{x}=f(\mu, x),\; x(0)=x(\tau),\eqno{(1)} \] where \(f\in C^{p+1} (\mathbb R\times\mathbb R^n)\to \mathbb R^n\) and \(f(\mu,x^\ast)=0\) for all \(\mu\in \mathbb R\).
Medak, Beata, Tret'yakov, Alexey A.
openaire +2 more sources
Nonlinear regularization techniques for seismic tomography [PDF]
Journal of Computational Physics, 2010 23 pages, 7 figures. Typographical error corrected in accelerated algorithms (14) and (20)
Loris, I. +4 more
openaire +5 more sources
Stochastic Tree Ensembles for Regularized Nonlinear Regression [PDF]
Journal of the American Statistical Association, 2021 This paper develops a novel stochastic tree ensemble method for nonlinear regression, which we refer to as XBART, short for Accelerated Bayesian Additive Regression Trees. By combining regularization and stochastic search strategies from Bayesian modeling with computationally efficient techniques from recursive partitioning approaches, the new method ...
Jingyu He, P. Richard Hahn
openaire +2 more sources
Regularity of the Solutions for Nonlinear Biharmonic Equations in Rn [PDF]
, 2009 The purpose of this paper is to establish the regularity the weak solutions for a nonlinear biharmonic ...
Deng, Yinbin, Yinbin Deng, Yi Li, Li, Yi
core +2 more sources
Note on solution regularity of the generalized magnetohydrodynamic equations with partial dissipation [PDF]
, 2013 In this brief note we study the n-dimensional magnetohydrodynamic equations with hyper-viscosity and zero resistivity.
Tran, Chuong Van +6 more
core +1 more source
Regularizing Properties of Nonlinear Semigroups [PDF]
Proceedings of the American Mathematical Society, 1987 It is known that some classes of m m -accretive operators
openaire +1 more source
The regularization of nonlinear electrical circuits [PDF]
Proceedings of the American Mathematical Society, 1975 Recently Smale [1] proposed the question ’under what conditions can an electrical circuit be regularized?’ This note gives a solution to the problem.
openaire +1 more source
Approximate entropy and auto mutual information analysis of the electroencephalogram in Alzheimer's disease patients [PDF]
, 2008 We analysed the electroencephalogram (EEG) from Alzheimer's disease (AD) patients with two nonlinear methods: approximate entropy (ApEn) and auto mutual information (AMI).
Gomez, C. +9 more
core +1 more source