Results 21 to 30 of about 311,780 (287)
PT Symmetric Schr\"odinger Operators: Reality of the Perturbed Eigenvalues [PDF]
, 2010 We prove the reality of the perturbed eigenvalues of some PT symmetric Hamiltonians of physical interest by means of stability methods. In particular we study 2-dimensional generalized harmonic oscillators with polynomial perturbation and the one ...
Caliceti, Emanuela +2 more
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Polynomial Preconditioned Arnoldi with Stability Control
SIAM Journal on Scientific Computing, 2021 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Embree, Mark +2 more
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Stability of certain higher degree polynomials
International Journal of Number Theory, 2023 One of the interesting problems in arithmetic dynamics is to study the stability of polynomials over a field. A polynomial [Formula: see text] is stable over [Formula: see text] if irreducibility of [Formula: see text] implies that all its iterates are also irreducible over [Formula: see text], that is, [Formula: see text] is irreducible over [Formula:
Shanta Laishram +2 more
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MAXIMIZING THE ROBUST STABILITY DEGREE OF SYSTEM WITH INTERVAL CHARACTERISTIC POLYNOMIAL
Известия Томского политехнического университета: Промышленная кибернетика, 2023 The article considers the use of critical root diagrams for the synthesis of a one-parameter robust controller that provides the maximum stability degree in a third-order system with interval parameters.
Alexander V. Sobol +1 more
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On the determinant of quaternionic polynomial matrices and its application to system stability [PDF]
, 2008 In this paper, we propose a definition of determinant for quaternionic, polynomial matrices inspired by the well-known Dieudonne determinant for the constant case.
Pereira, Ricardo, Rocha, Paula
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The Stability Analysis for a 2 × 2 Conservation Law with PI Controller and PDP Controller
Journal of Mathematics, 2023 This article is concerned with the stability analysis of a 2×2 conservation law with PI and PDP boundary feedback control. In the PI controller case, the authors establish a sufficient and necessary stability condition for feedback parameters by Walton ...
Dong-Xia Zhao, Fang-Xia Bao
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Stability of Real Parametric Polynomial Discrete Dynamical Systems
Discrete Dynamics in Nature and Society, 2015 We extend and improve the existing characterization of the dynamics of general quadratic real polynomial maps with coefficients that depend on a single parameter λ and generalize this characterization to cubic real polynomial maps, in a consistent theory
Fermin Franco-Medrano +1 more
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Methods and algorithms for determining the main quasi-homogeneous forms of polynomials and power series [PDF]
MATEC Web of Conferences, 2022 Methods are proposed that allow one to determine the special forms of polynomials and power series used in solving a number of practical problems. The most important of them are the construction of necessary and sufficient conditions for an extremum for ...
Nefedov Viktor
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Symmetric powers, Steenrod operations and representation stability [PDF]
, 2019 Working over the prime field F_p, the structure of the indecomposables Q^* for the action of the algebra of Steenrod reduced powers A(p) on the symmetric power functors S^* is studied by exploiting the theory of strict polynomial functors.
Powell, Geoffrey
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Моделирование и анализ информационных систем, 2014 A combinatorial optimization problem is called stable if its solution is preserved under perturbation of the input parameters that do not exceed a certain threshold – the stability radius.
I. V. Kozlov
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