Results 41 to 50 of about 4,737,365 (276)

Historical perspectives of the Riccati equations

open access: yes, 2017
All the equations and inequalities, that are algebraic or differential are nowadays called of Riccati type if they consist of a constant, linear ones and quadratic terms in the variables.
M. Jungers
semanticscholar   +1 more source

A New Method for Riccati Differential Equations Based on Reproducing Kernel and Quasilinearization Methods

open access: yesAbstract and Applied Analysis, 2012
We introduce a new method for solving Riccati differential equations, which is based on reproducing kernel method and quasilinearization technique. The quasilinearization technique is used to reduce the Riccati differential equation to a sequence of ...
F. Z. Geng, X. M. Li
doaj   +1 more source

On the Equation of Riccati [PDF]

open access: yesProceedings of the London Mathematical Society, 1886
n ...
openaire   +1 more source

The Research of Periodic Solutions of Time-Varying Differential Models

open access: yesInternational Journal of Differential Equations, 2014
We have studied the periodicity of solutions of some nonlinear time-varying differential models by using the theory of reflecting functions. We have established a new relationship between the linear differential system and the Riccati equations and ...
Wenjun Liu, Yingxin Pan, Zhengxin Zhou
doaj   +1 more source

New solitary waves and exact solutions for the fifth-order nonlinear wave equation using two integration techniques

open access: yesJournal of Ocean Engineering and Science, 2023
In this paper, we discussed the enhanced Kudryashov’s and general projective Riccati equations techniques for obtaining exact solutions to the fifth-order nonlinear water wave (FONLWWE) equation.
Ahmed H. Arnous   +3 more
doaj   +1 more source

A schur method for solving algebraic Riccati equations

open access: yes1978 IEEE Conference on Decision and Control including the 17th Symposium on Adaptive Processes, 1978
In this paper a new algorithm for solving algebraic Riccati equations (both continuous-time and discrete-time versions) is presented. The method studied is a variant of the classical eigenvector approach and uses instead an appropriate set of Schur ...
A. Laub
semanticscholar   +1 more source

Ultradiscrete Painlevé VI with Parity Variables

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
We introduce a ultradiscretization with parity variables of the q-difference Painlevé VI system of equations. We show that ultradiscrete limit of Riccati-type solutions of q-Painlevé VI satisfies the ultradiscrete Painlevé VI system of equations with the
Kouichi Takemura, Terumitsu Tsutsui
doaj   +1 more source

A State‐Adaptive Koopman Control Framework for Real‐Time Deformable Tool Manipulation in Robotic Environmental Swabbing

open access: yesAdvanced Robotics Research, EarlyView.
This work presents a state‐adaptive Koopman linear quadratic regulator framework for real‐time manipulation of a deformable swab tool in robotic environmental sampling. By combining Koopman linearization, tactile sensing, and centroid‐based force regulation, the system maintains stable contact forces and high coverage across flat and inclined surfaces.
Siavash Mahmoudi   +2 more
wiley   +1 more source

New Riccati equations for radiating matter

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
The relationship between radiating stars in general relativity and Riccati equations is investigated for a general matter distribution including the electromagnetic field and the cosmological constant.
Noeleen Naidoo   +2 more
doaj   +1 more source

Dichotomous Hamiltonians with unbounded entries and solutions of Riccati equations [PDF]

open access: yesJournal of evolution equations (Printed ed.), 2013
An operator Riccati equation from systems theory is considered in the case that all entries of the associated Hamiltonian are unbounded. Using a certain dichotomy property of the Hamiltonian and its symmetry with respect to two different indefinite inner
C. Tretter, Christian Wyss
semanticscholar   +1 more source

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