Results 31 to 40 of about 6,698,594 (332)
On the local convergence of the Douglas–Rachford algorithm [PDF]
Archiv der Mathematik, 2014 We discuss the Douglas-Rachford algorithm to solve the feasibility problem for two closed sets $A,B$ in $\mathbb{R}^d$. We prove its local convergence to a fixed point when $A,B$ are finite unions of convex sets. We also show that for more general nonconvex sets the scheme may fail to converge and start to cycle, and may then even fail to solve the ...
Bauschke, H. H., Noll, Dominikus
openaire +3 more sources
Local Convergence of the Heavy-Ball Method and iPiano for Non-convex Optimization [PDF]
Journal of Optimization Theory and Applications, 2016 A local convergence result for an abstract descent method is proved. The sequence of iterates is attracted by a local (or global) minimum, stays in its neighborhood, and converges within this neighborhood.
Peter Ochs
semanticscholar +1 more source
On Weak Convergence of Locally Periodic Functions [PDF]
Journal of Nonlinear Mathematical Physics, 2002 We prove a generalization of the fact that periodic functions converge weakly to the mean value as the oscillation increases. Some convergence questions connected to locally periodic nonlinear boundary value problems are also considered.
Lukkassen, Dag, Wall, Peter
openaire +4 more sources
Ball Comparison between Two Efficient Weighted-Newton-like Solvers for Equations
Foundations, 2022 We compare the convergence balls and the dynamical behaviors of two efficient weighted-Newton-like equation solvers by Sharma and Arora, and Grau-Sánchez et al.
Ioannis K. Argyros +3 more
doaj +1 more source
Algorithms, 2023 In this paper, we provide a detailed local convergence analysis of a one-parameter family of iteration methods for the simultaneous approximation of polynomial zeros due to Ivanov (Numer. Algor. 75(4): 1193–1204, 2017).
Tsonyo M. Pavkov +3 more
doaj +1 more source
Ball convergence of Potra-Ptak-type method with optimal fourth order of convergence
Journal of Numerical Analysis and Approximation Theory, 2021 We present a local convergence analysis Potra-Ptak-type method with optimal fourth order of convergence in order to approximate a solution of a nonlinear equation. In earlier studies such as [1], [5]-[28] hypotheses up to the fourth derivative are used.
Ioannis K. Argyros, Santhosh George
doaj +2 more sources
Local Convergence for Wavelet Expansions
Journal of Functional Analysis, 1994 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kelly, S.E., Kon, M.A., Raphael, L.A.
openaire +2 more sources
Local Convergence Analysis of FastICA
, 2006 The FastICA algorithm can be considered as a selfmap on a manifold. It turns out that FastICA is a scalar shifted version of an algorithm recently proposed. We put these algorithms into a dynamical system framework. The local convergence properties are investigated subject to an ideal ICA model.
Hao Shen 0002, Knut Hüper
openaire +2 more sources
Identifying the Impacts of Social Movement Mobilization on YouTube: Social Network Analysis
InformationThis study explores the potential of social media in improving education, engagement, and mobilization for climate change initiatives. Using the theoretical framework of resource mobilization and methods such as social network analysis (SNA) and ...
Norhayatun Syamilah Osman +3 more
doaj +1 more source
InformationThis study examines the emergence of cryptocurrency-enabled democracy (c-democracy) through an analysis of blockchain-based prediction markets during South Korea’s 2024 presidential impeachment crisis.
Han-Woo Park +2 more
doaj +1 more source