Results 71 to 80 of about 1,702,158 (221)
An observability criterion for dynamical systems governed by Riccati differential equations [PDF]
, 1996 In this paper, we present an observability criterion for systems whose state is governed by a matrix Riccati differential equation and whose output is given by a affine ...
Rosenthal, J
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Invariant Theory, the Riccati Group, and Linear Control Problems [PDF]
, 1976 The classical algebraic theory of invariants is applied to the linear-quadratic-gaussian (LQG) control problem to derive a canonical form under a certain matrix transformation group. The particular group of transformations, termed here the "Riccati group,
Casti, J.L.
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Advanced Optical Materials, Volume 14, Issue 40, 27 October 2026.Spherical liquid crystal polymer microlasers with a bipolar configuration confine lasing to a single equatorial plane, allowing precise control over where the laser emission is generated. The anisotropic refractive index profile additionally lifts the energy degeneracy of azimuthal whispering gallery modes, which causes a characteristic splitting into ...
David Ripp +5 more
wiley +1 more source
EXPERIMENTAL IMPLEMENTATION OF SDRE METHOD FOR AUTONOMOUS RENDEZVOUS AND DOCKING MANEUVERING [PDF]
, 2013 In this paper a nonlinear controller technique, referred to State-Dependent Riccati Equation (SDRE), is exploited to handle relative position tracking and attitude synchronization problem involving in docking manoeuvring operations between two Earth ...
Theil, Stephan +3 more
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Riccati-Based Feedback Stabilized Navier-Stokes Flow
, 2013 Closed-loop simulation of Navier-Stokes flow within "von Kármán vortex street". The vertical component of the velocity field is illustrated. The top video shows the velocity field without any feedback. The middle video shows the influence of the initial
Weichelt, Heiko +1 more
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An overview of recent developments in computational methods for periodic systems [PDF]
, 2007 : At the First IFAC Workshop on Periodic Systems (Como, Italy, 2001), a state of the art survey of computational methods for periodic systems has been presented (Varga and Van Dooren, 2001).
Andras Varga, Varga, Andreas
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Liouville-Green approximations via the Riccati transformation
Journal of Mathematical Analysis and Applications, 1986 Consider the scalar second order equation on (a,b) \(u''=f(t)u\) with \(f(t)=p(t)^ 2+q(t)\) or \(f(t)=-p(t)^ 2+q(t),\) being p positive and piecewise differentiable and q piecewise continuous. Under suitable conditions on f, using a Riccati transformation, fundamental solutions are found and these are used to provide Liouville-Green approximations and ...
openaire +2 more sources
Kamenev-type oscillation criteria for forced Emden-Fowler superlinear difference equations
Electronic Journal of Differential Equations, 2002 Using Riccati transformation techniques, we establish oscillation criteria for forced second-order Emden-Fowler superlinear difference equations. Our criteria are discrete analogues of the criteria used for differential equations by Kamanev [5].
Samir H. Saker
doaj
Engineering Reports, Volume 8, Issue 10, October 2026.Exact soliton solutions of the time‐fractional Akbota equation with the beta derivative are obtained using three analytical methods. Bifurcation, stability, and phase‐plane analyses reveal stable and unstable equilibrium states, demonstrating controllable nonlinear wave dynamics with promising applications in optical fiber communication, nonlinear ...
S. M. Rayhanul Islam
wiley +1 more source
Oscillation of second order neutral dynamic equations with distributed delay
Electronic Journal of Qualitative Theory of Differential Equations, 2016 In this paper, we establish new oscillation criteria for second order neutral dynamic equations with distributed delay by employing the generalized Riccati transformation.
Qiaoshun Yang, Zhiting Xu, Ping Long
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