Results 231 to 240 of about 275,056 (272)

Chebyshev centers and radii for sets induced by quadratic matrix inequalities. [PDF]

Math Control Signal Syst
Shakouri A, van Waarde HJ, Camlibel MK.
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Quadratic Euler characteristic of symmetric powers of curves. [PDF]

Manuscr Math
Bröring LF, Viergever AM.
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Flight Phenology of <i>Spodoptera eridania</i> (Stoll, 1781) (Lepidoptera: Noctuidae) in Its Native Range: A Baseline for Managing an Emerging Invasive Pest. [PDF]

Insects
Alzate C, Calixto ES, Paula-Moraes SV.
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Stable approach based diagonal recurrent quantum neural networks for identification of nonlinear systems. [PDF]

Sci Rep
Khalil H, Elshazly O, Shaheen O.
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Vector fields and quadratic maps

The Journal of the Acoustical Society of America, 1998
Vector fields describing responses of nonlinear systems are often investigated by sampling on a suitable Poincaré section. For example, period-1 limit cycles yield one fixed point, period-2 two points, and so on. More information could be obtained if the full return map on the section rather than just the fixed points were known.
Huw G. Davies, Konstantinos Karagiosis
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A smooth vector field for quadratic programming

2012 IEEE 51st IEEE Conference on Decision and Control (CDC), 2012
In this paper we consider the class of convex optimization problems with affine inequality constraints and focus hereby on the class of quadratic programs. We propose a smooth vector field that is constructed such that its trajectories converge to the saddle point of the Lagrangian function associated to the convex optimization problem.
Hans-Bernd Durr, Erkin Saka, Christian Ebenbauer   +2 more
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Quadratic vector fields in class I

Dynamical Systems
In [Ye et al., Theory of Limit Cycles, 1986], quadratic systems are classified into three different normal forms (I, II and III) with increasing number of parameters. The simplest family is I and even several subfamilies of it have been studied, and some global attempts have been done, up to this paper, the full study was still undone. In this article,
Artés Ferragud, Joan Carles, Chen, Hebai, Ferrer, Lluc Manel, Jia, Man   +3 more
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QUADRATIC VECTOR FIELDS EQUIVARIANT UNDER THE D₂ SYMMETRY GROUP

International Journal of Bifurcation and Chaos, 2013
Symmetry often plays an important role in the formation of complicated structures in the dynamics of vector fields. Here, we study a specific family of systems defined on ℝ3, which are invariant under the D2 symmetry group. Under the assumption that they are polynomial of degree at most two, they belong to a two-parameter family of vector fields ...
Anastassiou, Stavros, Pnevmatikos, Spyros, Bountis, Tassos   +2 more
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