Results 21 to 30 of about 307,506 (317)

NUMERICAL METHOD OF OPTIMIZATION THE CONSTRUCTION OF RADIOELECTRONIC DEVICE BY MANUFACTURABILITY CRITERION

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2016
The numerical method of optimization the construction of radio-electronic device at early design stages by criterion of manufacturability when the area of tolerances in space of input variables in which all points restrictions on a manufacturability ...
G. Kh. Irzaev
doaj   +1 more source

On monotonic bijections on subgroups of R

open access: yesApplied General Topology, 2016
We show that for any continuous monotonic  bijection $f$ on a $\sigma$-compact subgroup  $G\subset \mathbb R$ there exists a binary operation $+_f$ such that $\langle G, +_f\rangle$  is a topological group topologically isomorphic to $\langle G, +\rangle$
Raushan Buzyakova
doaj   +1 more source

Global stability of a continuous bioreactor model under persistent variation of the dilution rate

open access: yesMathematical Biosciences and Engineering, 2023
In this work, the global stability of a continuous bioreactor model is studied, with the concentrations of biomass and substrate as state variables, a general non-monotonic function of substrate concentration for the specific growth rate, and constant ...
Alejandro Rincón   +2 more
doaj   +1 more source

On the monotonicity of Hilbert functions [PDF]

open access: yesRendiconti del Seminario Matematico della Università di Padova, 2018
In this paper we show that a large class of one-dimensional Cohen–Macaulay local rings (\mathcal A,\mathfrak m) has the property that if M is a maximal Cohen–Macaulay A -module ...
openaire   +3 more sources

When is a monotone function cyclically monotone?

open access: yesTheoretical Economics, 2021
We provide sufficient conditions for a monotone function with a finite set of outcomes to be cyclically monotone. Using these conditions, we show that any monotone function defined on the domain of gross substitutes is cyclically monotone. The result also extends to the domain of generalized gross substitutes and complements.
Kushnir, Alexey, Lokutsievskiy, Lev V.
openaire   +3 more sources

Electron transport and energy relaxation in dilute magnetic alloys [PDF]

open access: yes, 2003
We consider the effect of the RKKY interaction between magnetic impurities on the electron relaxation rates in a normal metal. The interplay between the RKKY interaction and the Kondo effect may result in a non-monotonic temperature dependence of the ...
A. I. Larkin   +30 more
core   +1 more source

Monotonic Averages of Convex Functions

open access: bronzeJournal of Mathematical Analysis and Applications, 2000
This very nice paper contains several interesting results. The authors summarize its subject as follows: ``We investigate the monotonicity of various averages of the values of a convex (or concave) function at \(n\) equally spaced points. For a convex function, averages without end points increase with \(n\), while averages with end points decrease ...
Grahame Bennett, G. J. O. Jameson
openalex   +4 more sources

On a Conjecture of Alzer, Berg, and Koumandos

open access: yesMathematics, 2020
In this paper, we find a solution of an open problem posed by Alzer, Berg, and Koumandos: determine ( α , m ) ∈ R + × N such that the function x α | ψ ( m ) ( x ) | is completely monotonic on ( 0 , ∞ ) , where ψ (
Ladislav Matejíčka
doaj   +1 more source

A SOLUTION TO QI’S EIGHTH OPEN PROBLEM ON COMPLETE MONOTONICITY

open access: yesПроблемы анализа, 2021
n this paper, the complete monotonicity of 1/( arctan 𝑥) is proved. This problem was posted by F. Qi and R. P. Agarwal as the eighth open problem of collection of eight open problems.
A. Venkata Lakshmi
doaj   +1 more source

A complete monotonicity property of the multiple gamma function

open access: yesComptes Rendus. Mathématique, 2020
We consider the following functions \[ f_n(x)=1-\ln x+\frac{\ln G_n(x+1)}{x} \text{ and }g_n(x)=\frac{\@root x \of {G_n(x+1)}}{x},\; x\in (0,\infty ),\; n\in \mathbb{N}, \] where $G_n(z)=\left(\Gamma _n(z)\right)^{(-1)^{n-1}}$ and $\Gamma _n$ is the ...
Das, Sourav
doaj   +1 more source

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