Results 71 to 80 of about 1,550,223 (212)

Nonsquare Spectral Factorization for Nonlinear Control Systems [PDF]

open access: yes, 2005
This paper considers nonsquare spectral factorization of nonlinear input affine state space systems in continuous time. More specifically, we obtain a parametrization of nonsquare spectral factors in terms of invariant Lagrangian submanifolds and ...
Schaft, Arjan J. van der   +4 more
core   +2 more sources

Nonlinear Optimal Control for Stochastic Dynamical Systems

open access: yesMathematics
This paper presents a comprehensive framework addressing optimal nonlinear analysis and feedback control synthesis for nonlinear stochastic dynamical systems.
Manuel Lanchares, Wassim M. Haddad
doaj   +1 more source

Wormholes and effective potentials

open access: yesACI Avances en Ciencias e Ingenierías, 2011
The fundamental properties of the Ellis wormholes are reviewed. Using the Hamilton-Jacobi formalism, we have derived the effective potentials and the orbit equation for a particle around a wormhole in both Ellis and Morris-Thorne geometries.
Carlos A. Marín
doaj   +1 more source

Backstepping boundary control design for a cascaded viscous Hamilton–Jacobi PDE–ODE system

open access: yesIET Control Theory & Applications, 2021
This paper develops state‐feedback and output‐feedback control design methodologies for boundary stabilization of a class of systems that involves cascade connection of a non‐linear viscous Hamilton–Jacobi partial differential equation (PDE) and a ...
Parisa Nikdel   +3 more
doaj   +1 more source

Approximate Reachability for Feedback Linearizable Systems

open access: yesOptimal Control Applications and Methods, Volume 47, Issue 5, Page 1062-1082, September/October 2026.
The backwards reachable set for a dynamical system is the set of states for which there exists a constraint admissible trajectory that reaches a given terminal set. Conventional grid‐based approaches for computing these sets are intractable for many applications.
Vincent Liu   +2 more
wiley   +1 more source

An application of global gradient estimates in Lorentz-Morrey spaces for the existence of stationary solutions to degenerate diffusive Hamilton-Jacobi equations

open access: yesElectronic Journal of Differential Equations, 2019
In mathematics and physics, the Kardar-Parisi-Zhang equation or quasilinear stationary version of a time-dependent viscous Hamilton-Jacobi equation in growing interface and universality classes is also known as the quasilinear Riccati type equation ...
Minh-Phuong Tran, Thanh-Nhan Nguyen
doaj  

Stochastic differential equations harvesting optimization with stochastic prices: Formulation and numerical solution

open access: yesResults in Applied Mathematics
This work aims to achieve optimal harvesting in a random setting with a stochastic price structure. We use a general growth function to model the harvested population, a geometric Brownian motion to model price change, and add fluctuations in the ...
Miguel Reis, Nuno M. Brites
doaj   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

open access: yesSmartBot, Volume 2, Issue 3, September 2026.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen   +12 more
wiley   +1 more source

Existence of viscosity solution for a singular Hamilton–Jacobi equation

open access: yesArab Journal of Mathematical Sciences, 2015
In this paper we study the existence of a singular Hamilton–Jacobi equation under the framework of viscosity solutions. The analysis is inspired by the arguments of [8] where a study of a model on dislocation dynamics was considered.
H. Ibrahim, S. Zabad
doaj   +1 more source

Thermo‐Mechanical Topology Optimization: An Immersed FEM Level‐Set‐Based Approach

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 15, 15 August 2026.
ABSTRACT This paper proposes a multi‐physics framework for topology optimization using an immersed level set‐finite element model. The work extends the capabilities of a recently developed immersed level‐set method to thermo‐mechanical problems, including coupling and material‐dependent properties.
Farzad Tatar   +3 more
wiley   +1 more source

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