Results 21 to 30 of about 9,550,679 (229)
Quadratic invariants for discrete clusters of weakly interacting waves [PDF]
, 2013 We consider discrete clusters of quasi-resonant triads arising from a Hamiltonian three-wave equation. A cluster consists of N modes forming a total of M connected triads.
Nazarenko, Sergey +3 more
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Bargmann Type Systems for the Generalization of Toda Lattices
Journal of Applied Mathematics, 2014 Under a constraint between the potentials and eigenfunctions, the nonlinearization of the Lax pairs associated with the discrete hierarchy of a generalization of the Toda lattice equation is proposed, which leads to a new symplectic map and a class of ...
Fang Li, Liping Lu
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Conflict-preserving abstraction of discrete event systems using annotated automata [PDF]
, 2012 This paper proposes to enhance compositional verification of the nonblocking property of discrete event systems by introducing annotated automata. Annotations store nondeterministic branching information, which would otherwise be stored in extra states ...
Malik, Robi, Ware, Simon
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Energy-Preserving AVF Methods for Riesz Space-Fractional Nonlinear KGZ and KGS Equations
Fractal and Fractional, 2023 The Riesz space-fractional derivative is discretized by the Fourier pseudo-spectral (FPS) method. The Riesz space-fractional nonlinear Klein–Gordon–Zakharov (KGZ) and Klein–Gordon–Schrödinger (KGS) equations are transformed into two infinite-dimensional ...
Jianqiang Sun, Siqi Yang, Lijuan Zhang
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Nonlinear AnalysisThis paper is concerned with practical fixed-time (FT) stabilization problem of discretetime impulsive switched port-controlled Hamiltonian systems (DISPCH).
Xiangyu Chen +3 more
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Subharmonics with Minimal Periods for Convex Discrete Hamiltonian Systems
Abstract and Applied Analysis, 2013 We consider the subharmonics with minimal periods for convex discrete Hamiltonian systems. By using variational methods and dual functional, we obtain that the system has a -periodic solution for each positive integer , and solution of system has minimal
Honghua Bin
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Symmetry-protected exceptional and nodal points in non-Hermitian systems
SciPost Physics, 2023 One of the unique features of non-Hermitian (NH) systems is the appearance of NH degeneracies known as exceptional points (EPs). The extensively studied defective EPs occur when the Hamiltonian becomes non-diagonalizable.
Sharareh Sayyad, Marcus Stålhammar, Lukas Rødland, Flore K. Kunst
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On the role of invariants for the parameter estimation problem in Hamiltonian systems [PDF]
, 1993 Baake M, Baake E, Eich E. On the role of invariants for the parameter estimation problem in Hamiltonian systems. Physics letters. 1993;180(1-2):74-82.The parameter estimation problem is discussed for differential equations that describe a Hamiltonian ...
Baake, Michael, Baake, Ellen, Eich, E.
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Equivariant singularity theory with distinguished parameters: Two case studies of resonant Hamiltonian systems [PDF]
, 1998 We consider Hamiltonian systems near equilibrium that can be (formally) reduced to one degree of freedom. Spatio-temporal symmetries play a key role. The planar reduction is studied by equivariant singularity theory with distinguished parameters.
Vegter, G +15 more
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Symmetry group analysis and invariant solutions of hydrodynamic-type systems
International Journal of Mathematics and Mathematical Sciences, 2004 We study point and higher symmetries of systems of the hydrodynamic type with and without an explicit dependence on t,x. We consider such systems which satisfy the existence conditions for an infinite-dimensional group of hydrodynamic symmetries which ...
M. B. Sheftel
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