Results 11 to 20 of about 5,144,504 (199)

A new application of boundary integral behaviors of harmonic functions to the least harmonic majorant

open access: yesBoundary Value Problems, 2017
Our main aim in this paper is to obtain a new type of boundary integral behaviors of harmonic functions in a smooth cone. As an application, the least harmonic majorant of a nonnegative subharmonic function is also given.
Minghua Han, Jianguo Sun, Gaoying Xue
doaj   +3 more sources

Method for finding majorant function estimates required to determine Picard’s successive approximations convergence domain

open access: yesMATEC Web of Conferences, 2018
This paper deals with convergence of Picard’s successive approximations, which give a solution for perturbed body motion differential equations system through constructing a majorizing linear differential equation.
Petelina Vera
doaj   +2 more sources

Testing for Sufficient Follow-Up in Survival Data With a Cure Fraction. [PDF]

open access: yesBiom J
ABSTRACT In order to estimate the proportion of “immune” or “cured” subjects who will never experience failure, a sufficiently long follow‐up period is required. Several statistical tests have been proposed in the literature for assessing the assumption of sufficient follow‐up, meaning that the study duration is longer than the support of the survival ...
Yuen TP, Musta E.
europepmc   +2 more sources

On the strict majorant property in arbitrary dimensions [PDF]

open access: yes, 2022
In this work we study $d$-dimensional majorant properties. We prove that a set of frequencies in ${\mathbb Z}^d$ satisfies the strict majorant property on $L^p([0,1]^d)$ for all $p> 0$ if and only if the set is affinely independent.
Guo, Shaoming   +4 more
core   +1 more source

Thyroid function in thalassaemia major. [PDF]

open access: yesArchives of Disease in Childhood, 1980
Serum concentrations of T4, T3, rT3, and TSH were measured by radioimmunoassay in 45 patients suffering from beta-thalassaemia. A TRH stimulation test was performed and the binding capacity of TBG and TBPA for T3 and T4 measured by reverse flow zone electrophoresis in a group of these patients.
DE LUCA, Filippo   +4 more
openaire   +3 more sources

A new algorithm for approximating the least concave majorant [PDF]

open access: yes, 2017
summary:The least concave majorant, $\hat F$, of a continuous function $F$ on a closed interval, $I$, is defined by \[ \hat F (x) = \inf \{ G(x)\colon G \geq F,\ G \text { concave}\},\quad x \in I. \] We present an algorithm, in the spirit of the Jarvis
Martin Franců   +5 more
core   +1 more source

On generalized characteristics of smoothness of functions and on average $\nu$-widths in the space $L_2(\mathbb{R})$

open access: yesResearches in Mathematics, 2019
Estimates above and estimates below have been obtained for Kolmogorov, linear and Bernshtein average $\nu$-widths on the classes of functions $W^r (\omega^w, \Psi)$, where $r \in \mathbb{N}$, $\omega^w(f)$ is the generalized characteristic of smoothness ...
S.B. Vakarchuk, M.B. Vakarchuk
doaj   +1 more source

STABILITY-PRESERVING PERTURBATION OF THE MAXIMAL TERMS OF DIRICHLET SERIES

open access: yesПроблемы анализа, 2022
We study stability of the maximal term of the Dirichlet series with positive exponents, the sum of which is an entire function. This problem is of interest, because the Leont’ev formulas for coefficients calculated using a biorthogonal system of ...
A. M. Gaisin, N. N. Aitkuzhina
doaj   +1 more source

Cognitive functioning in major depression – a summary [PDF]

open access: yesFrontiers in Human Neuroscience, 2009
The aim of the present paper is to summarize the research during the past decade regarding cognitive functioning in Major Depressive Disorder (MDD). Cognitive impairment in the acute phase of illness has been frequently reported. The findings are shown in different cognitive domains, such as executive functions, attention, memory and psychomotor speed.
Åsa Hammar, Åsa Hammar, Guro Årdal
openaire   +3 more sources

Isolated singularities of mappings with the inverse Poletsky inequality

open access: yesМатематичні Студії, 2021
The manuscript is devoted to the study of mappings with finite distortion, which have been actively studied recently. We consider mappings satisfying the inverse Poletsky inequality, which can have branch points.
E.A. Sevost'yanov
doaj   +1 more source

Home - About - Disclaimer - Privacy