Results 71 to 80 of about 649,766 (178)

Simple normal crossing Kähler–Einstein metrics and RCD spaces

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 7, July 2026.
Abstract We show that Kähler–Einstein metrics with cone singularities along simple normal crossing (SNC) divisors define Riemannian Curvature Dimension (RCD) spaces, both in the compact setting and in certain non‐compact cases, thereby producing many examples of Einstein RCD spaces. In particular, we show the existence of smooth non‐compact 4‐manifolds
Martin de Borbon, Cristiano Spotti
wiley   +1 more source

Semilocal Convergence Analysis of an Iteration of Order Five Using Recurrence Relations in Banach Spaces [PDF]

open access: yes, 2016
[EN] Semilocal convergence for an iteration of order five for solving nonlinear equations in Banach spaces is established under second-order Fr,chet derivative satisfying the Lipschitz condition. It is done by deriving a number of recurrence relations. A
Hueso Pagoaga, José Luís   +3 more
core   +1 more source

Robust convergence of Newton's method for cone inclusion problem

open access: yes, 2021
Capítulo del libro "Contemporary study of iterative methods: convergence, dynamics and applications"In this chapter, motivated by the idea of the restricted convergence domains, we present a convergence analysis of Newton's method for cone inclusion ...
Argyros, Ioannis K   +1 more
core   +1 more source

A Unified Convergence Analysis for Some Two-Point Type Methods for Nonsmooth Operators

open access: yesMathematics, 2019
The aim of this paper is the approximation of nonlinear equations using iterative methods. We present a unified convergence analysis for some two-point type methods.
Sergio Amat   +4 more
doaj   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

Solving equations using Newton's method under weak conditions on Banach spaces with a convergence structure

open access: yesJournal of Numerical Analysis and Approximation Theory, 2008
We provide new semilocal results for Newton's method on Banach spaces with a convergence structure. Using more precise majorizing sequence we show that, under weaker convergence conditions than before, we can obtain finer error bounds on the distances ...
Ioannis K. Argyros
doaj   +2 more sources

Local‐Hybrid Functional With a Composite Local Mixing Function Built From a Neural Network and a Strong‐Correlation Model

open access: yesJournal of Computational Chemistry, Volume 47, Issue 3, 30 January 2026.
A new local hybrid functional, LH25nP, is reported, that uses a neural‐network local mixing function for the position‐dependence of exact‐exchange admixture trained with a human‐designed strong‐correlation factor. It thereby escapes the usual zero‐sum game between delocalization and static‐correlation errors.
Artur Wodyński, Martin Kaupp
wiley   +1 more source

Extended convergence of two-step iterative methods for solving equations with applications

open access: yesJournal of Numerical Analysis and Approximation Theory
The convergence of two-step iterative methods of third and fourth order of convergence are studied under weaker hypotheses than in earlier works using our new idea of the restricted convergence region.
Ioannis K. Argyros, Santhosh George
doaj   +1 more source

Computational and Experimental Investigation of Chiral and Achiral Two‐Dimensional Organic Lead Bromide Perovskites: Octahedral Distortions and Electronic and Optical Properties

open access: yesChemPhysChem, Volume 26, Issue 24, December 16, 2025.
Octahedral distortion parameters in two‐dimensional hybrid organic‐inorganic perovskites, as calculated by Python code, are correlated with electronic and optical properties. Structure, Dresselhaus spin splitting, and anisotropic optical transitions of synthesized chiral and achiral lead bromide perovskites are computationally analyzed. A computational
Md Mehdi Masud   +4 more
wiley   +1 more source

Auxiliary point on the semilocal convergence of Newton's method [PDF]

open access: yes, 2017
We use an auxiliary point in the analysis of the semilocal convergence of Newton’smethod under center conditions on high order derivatives of the operator involved anduse the majorant principle of Kantorovich to do ...
M. A. Hernández-Verón [0000-0001-5478-2958]   +1 more
core  

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