Results 31 to 40 of about 3,276,106 (201)

A priori error estimates for energy-based quasicontinuum approximations of a periodic chain [PDF]

open access: yes, 2011
We derive a priori error estimates for three prototypical energy-based quasicontinuum (QC) methods: the local QC method, the energy-based QC method, and the quasi-nonlocal QC method.
Christoph Ortner   +3 more
core   +1 more source

Stability Criteria for Regular Matrix Polynomials via Taylor Coefficients

open access: yesMathematics
This paper presents criteria for Hurwitz stability and quasi-stability of regular matrix polynomials with possibly singular leading coefficients, for application to the stability analysis of differential-algebraic systems. The proposed framework involves
Xuzhou Zhan, Xiang Gao, Yongjian Hu
doaj   +1 more source

On quasi-stability of the vector Boolean problem of minimizing absolute deviations of linear functions from zero [PDF]

open access: yesComputer Science Journal of Moldova, 2006
We consider a multi-criterion Boolean programming problem with partial criteria of the kind MIN MODUL of linear functions. We investigate such type of stability which can be understood as a discrete analogue of the Hausdorff lower semi-continuity.
Vladimir A. Emelichev   +1 more
doaj  

Stability of the Fréchet Equation in Quasi-Banach Spaces

open access: yesMathematics, 2020
We investigate the Hyers–Ulam stability of the well-known Fréchet functional equation that comes from a characterization of inner product spaces. We also show its hyperstability on a restricted domain. We work in the framework of quasi-Banach spaces.
Sang Og Kim
doaj   +1 more source

Quasi-Two-Dimensional Halide Perovskite Single Crystal Photodetector

open access: yes, 2018
The robust material stability of the quasi-two-dimensional (quasi-2D) metal halide perovskites has opened the possibility for their usage instead of three-dimensional (3D) perovskites.
Dong Yang (141041)   +4 more
core   +2 more sources

On quasistability of a vector combinatorial problem with \Sigma-MINMAX and \Sigma-MINMIN partial criteria [PDF]

open access: yesComputer Science Journal of Moldova, 2004
We consider one type of stability (quasistability) of a vector combinatorial problem of finding the Pareto set. Under quasistability we understand a discrete analogue of lower semicontinuity by Hausdorff of the many-valued mapping, which defines the ...
Vladimir A. Emelichev   +2 more
doaj  

Marginal Stability Diagrams for Infinite-n Ballooning Modes in Quasi-symmetric Stellarators [PDF]

open access: yes, 2003
By perturbing the pressure and rotational-transform profiles at a selected surface in a given equilibrium, and by inducing a coordinate variation such that the perturbed state is in equilibrium, a family of magnetohydrodynamic equilibria local to the ...
Ware, A.   +3 more
core   +1 more source

Ellipsoidal vortices in rotating stratified fluids : beyond the quasi-geostrophic approximation [PDF]

open access: yes, 2015
Support for this research has come from the UK Engineering and Physical Sciences Research Council (grant number EP/H001794/1).We examine the basic properties and stability of isolated vortices having uniform potential vorticity (PV) in a non-hydrostatic ...
Dritschel, David G.   +2 more
core   +1 more source

Stability of Functional Equations in Dislocated Quasi-Metric Spaces

open access: yesAnnales Mathematicae Silesianae, 2018
We present a result on the generalized Hyers-Ulam stability of a functional equation in a single variable for functions that have values in a complete dislocated quasi-metric space.
Hejmej Beata
doaj   +1 more source

Quasi total double Roman domination stability in graphs

open access: yesAKCE International Journal of Graphs and Combinatorics
A quasi total double Roman dominating function (QTDRD-function) on a graph [Formula: see text] is a function [Formula: see text] having the property that [Formula: see text] if [Formula: see text], then the vertex v must have at least two neighbors ...
Saeed Kosari, Hanxin Jiang, M. Esmaeili
doaj   +1 more source

Home - About - Disclaimer - Privacy