Results 21 to 30 of about 5,096 (155)

Expanding the applicability of the Gauss-Newton method for a certain class of systems of equations

open access: yesJournal of Numerical Analysis and Approximation Theory, 2016
We present a new semilocal convergence analysis of the Gauss-Newton method in order to solve a certain class of systems of equations under a majorant condition.
Ioannis K. Argyros, Santhosh George
doaj   +2 more sources

Factorizations induced by complete Nevanlinna-Pick factors

open access: yes, 2018
We prove a factorization theorem for reproducing kernel Hilbert spaces whose kernel has a normalized complete Nevanlinna-Pick factor. This result relates the functions in the original space to pointwise multipliers determined by the Nevanlinna-Pick ...
Aleman, Alexandru   +3 more
core   +1 more source

On Newton-Kantorovich Method for Solving the Nonlinear Operator Equation

open access: yesAbstract and Applied Analysis, 2015
We develop the Newton-Kantorovich method to solve the system of 2×2 nonlinear Volterra integral equations where the unknown function is in logarithmic form. A new majorant function is introduced which leads to the increment of the convergence interval.
Hameed Husam Hameed   +3 more
doaj   +1 more source

Majorization by starlike functions

open access: yesThe Journal of Nonlinear Sciences and Applications, 2017
Summary: The main object of this paper is to investigate some majorization problems involving the subclass \(S (\alpha,A, B)\) of starlike functions in the open unit disk \(\mathcal{U}\). Relevant connections of the results presented here with those given by earlier workers on the subject are also indicated.
Kiliç, Öznur Özkan, Altıntaş, Osman
openaire   +3 more sources

Disrupted habenula function in major depression [PDF]

open access: yesMolecular Psychiatry, 2016
The habenula is a small, evolutionarily conserved brain structure that plays a central role in aversive processing and is hypothesised to be hyperactive in depression, contributing to the generation of symptoms such as anhedonia. However, habenula responses during aversive processing have yet to be reported in individuals with major depressive disorder
Lawson, RP   +6 more
openaire   +4 more sources

ON DISTORTION OF THE MODULI OF RINGS UNDER LOCALLY QUASICONFORMAL MAPPINGS IN R^n

open access: yesПроблемы анализа, 2015
Some of the earlier results of author concerning distortion of the moduli of ring domains under planar locally quasiconformal mappings are generalized on the case of locally quasiconformal mappings in Rn, n ≥ 2.
S. Yu. Graf
doaj   +1 more source

СREATION OF CORRELATION FUNCTIONS OF LINEAR CONTINUOUS SYSTEMS BASED ON THEIR FUNDAMENTAL MATRICES [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
The paper presents a method of creating correlation matrices and functions of the state vectors and outputs of the linear continuous systems functioning under the conditions of stochastic stationary, in a broad sense, effects.
N. A. Vunder   +3 more
doaj   +1 more source

The Exact Inequalities of Jackson–Stechkin Type and the Width Values for Some Classes of Functions in L₂ Space

open access: yesМоделирование и анализ информационных систем, 2013
In this paper, some exact inequalities between the best approximations of periodic differentiable functions with trigonometric polynomials and generalized moduli of the continuity Ωm of m-th order in L₂[0, 2π] space are found.
M. R. Langarshoev
doaj   +3 more sources

Mineralocorticoid Receptor Function in Major Depression [PDF]

open access: yesArchives of General Psychiatry, 2003
Negative feedback regulation of the hypothalamic-pituitary-adrenal axis occurs through a dual-receptor system of mineralocorticoid receptors (MR) and glucocorticoid receptors (GR). Their affinity for cortisol and their distribution in the brain differ.
Elizabeth A, Young   +4 more
openaire   +2 more sources

On a rigidity property for quadratic gauss sums

open access: yesMathematika, Volume 72, Issue 1, January 2026.
Abstract Let N$N$ be a large prime and let c>1/4$c > 1/4$. We prove that if f$f$ is a ±1$\pm 1$‐valued multiplicative function, such that the exponential sums Sf(a):=∑1⩽n
Alexander P. Mangerel
wiley   +1 more source

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