Results 21 to 30 of about 731,067 (193)

Radius stabilization by two-loop Casimir energy

open access: yesNuclear Physics B, 2005
18 pages, 2 figures, uses axodraw, references ...
von Gersdorff, G., Hebecker, A.
openaire   +3 more sources

q-RADIUS STABILITY OF MATRIX POLYNOMIALS [PDF]

open access: yesInternational Journal of Pure and Apllied Mathematics, 2014
In this paper, the q−radius stability of a matrix polynomial P(λ) relative to an open region of the complex plane and its relation to the q−numerical range of P(λ) are investigated. Also, we obtain a lower bound that involves the distance of to the connected components of the q−numerical range of P(λ).
Y. Jahanshahi, B. Yousefi
openaire   +1 more source

The Stability Radius of Fredholm Linear Pencils

open access: yesJournal of Mathematical Analysis and Applications, 2001
Let \(T\) and \(S\) be two bounded linear operators from Banach spaces \(X\) into \(Y\), and suppose that \(T\) is Fredholm and \(\dim N(T-\lambda S)\) is constant in a neighborhood of \(\lambda=0\). Let \(d(T;S)\) be the supremum of all \(r>0\) such that \(\dim N(T-\lambda S)\) and \(codim R(T-\lambda S)\) are constant for all \(\lambda\) with ...
Badea, C., Mbekhta, M.
openaire   +1 more source

Stability of the bicriteria Boolean investment problem subject to extreme optimism and pessimism criteria

open access: yesCroatian Operational Research Review, 2015
We consider the bicriteria investment Boolean problem of finding the Pareto set based on efficiency and risk criteria. The quantitative stability characteristics of the problem are investigated, and lower and upper bounds for a stability radius are ...
Vladimir Korotkov   +2 more
doaj   +1 more source

Stability Analysis of Efficient Portfolios in a Discrete Variant of Multicriteria Investment Problem with Savage's Risk Criteria [PDF]

open access: yesComputer Science Journal of Moldova, 2017
We consider a multicriteria discrete variant of investment portfolio optimization problem with Savage's risk criteria. Three combinations of norms in problem parameter spaces are considered.
Vladimir Emelichev   +2 more
doaj  

Stability radius of second order linear structured differential inclusions

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
For arbitrary second order square matrices $A, B, C$; $A$ Hurwitz stable, the minimum positive value $R$ for which the differential inclusion $$\dot{x}\in F_{R}(x):=\{(A+B\Delta C)x, \ \Delta \in \mathbb{R}^{2\times 2},\ \|\Delta \| \le R \}$$ fails to ...
Henry González
doaj   +1 more source

Measure of stability of a Pareto optimal solution to a vector integer programming problem with fixed surcharges in the l1 and l∞ metrics [PDF]

open access: yesComputer Science Journal of Moldova, 2005
In this paper we consider a vector integer programming problem with Pareto principle of optimality for the case where partial criteria belong to the class of separable piecewise linear functions. The limit level of the initial data's perturbations in the
Vladimir A. Emelichev   +2 more
doaj  

Steering Stability Control for Four-Motor Distributed Drive High-Speed Tracked Vehicles

open access: yesIEEE Access, 2020
A steering stability control method for four-motor distributed drive high-speed tracked vehicle is proposed to improve handling stability and safety. The dynamic analysis and calculation of center steering, small radius steering and large radius steering
Li Zhai   +5 more
doaj   +1 more source

Appropriately Matched Fixed-Angle Locking Plates Improve Stability in Volar Distal Radius Fixation

open access: yesJournal of Hand Surgery Global Online, 2022
Purpose: Size options for volar locking plates may provide value for distal radius fixation. We compared excessively narrow plates with plates that were appropriately matched in width for fixation of an multifragmented distal radius fracture model ...
Natalia D. McIver, MS   +4 more
doaj   +1 more source

On Open Scattering Channels for Manifolds with Ends [PDF]

open access: yes, 2012
In the framework of time-dependent geometric scattering theory, we study the existence and completeness of the wave operators for perturbations of the Riemannian metric for the Laplacian on a complete manifold of dimension $n$.
Hempel, Rainer   +2 more
core   +1 more source

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