Results 221 to 230 of about 2,053,633 (282)

Softening Locally Polyhedral Tilings. [PDF]

J Nonlinear Sci
Ambrus G, Dancsó D.
europepmc   +1 more source

Sliding Motions on Non‐Euclidean State Spaces: A Differential‐Geometric Perspective

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper extends sliding‐mode control theory to nonlinear systems evolving on smooth manifolds. Building on differential geometric methods, we reformulate Filippov's notion of solutions, characterize well‐defined vector fields on quotient spaces, and provide a consistent geometric definition of higher‐order sliding modes.
Fernando Castaños
wiley   +1 more source

Finite Element Approximation of Lyapunov Equations Related to Parabolic Stochastic PDEs. [PDF]

Appl Math Optim
Andersson A, Lang A, Petersson A, Schroer L.   +3 more
europepmc   +1 more source

Observer Design for Vector Nonlinear Systems With Applications to Autonomous Vehicles and Robots

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper focuses on observer design for nonlinear systems involving functions of vector arguments. The output equations and the process dynamics are both composed of nonlinear functions of nonseparable multivariable states. The partial derivatives of the nonlinear functions are assumed to be bounded.
Gaurav Sharma, Ali Zemouche, Rajesh Rajamani   +2 more
wiley   +1 more source

A minimal physiological model of perceptual suppression and breakthrough in visual rivalry. [PDF]

J Vis
Whyte CJ, Wilson HR, Shine JM, Alais D.
europepmc   +1 more source

Neural Network‐Based Runtime Monitoring and Control for Unknown Nonlinear Systems

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Real‐time system monitoring and stabilization become especially challenging when the system dynamics are unknown. This article introduces a novel design for monitoring and stabilizing unknown nonlinear systems with measurement noise. The design utilizes a generic modelling framework by decomposing the system into a known tunable linear ...
Jianglin Lan, Xianxian Zhao, Ron Patton
wiley   +1 more source

Statistical limits and conditional complexity in real-world reinforcement learning: a tutorial survey. [PDF]

Front Artif Intell
Ahmad A, Vallès Y, Idaghdour Y.
europepmc   +1 more source

Insights From the Alphasat Aldo Paraboni Experiment at Tito Scalo and Spino d'Adda: Characterizing Scintillation and Rain Attenuation at Ka‐ and Q‐Band Frequencies

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT We present experimental results on the relationship between rain attenuation and simultaneous scintillation during rain events, based on beacon signal measurements at 19.7 (Ka‐band) and 39.4 GHz (Q‐band) from the geosynchronous Alphasat satellite (25° E), received at two Italian ground stations, Spino d'Adda (42.1° slant path) and Tito Scalo ...
Miles Turner, Alef Comisso, Carlo Riva, Lorenzo Luini, Giuseppe Codispoti, Giorgia Parca   +5 more
wiley   +1 more source

On De Giorgi's conjecture of nonlocal approximations for free-discontinuity problems: The symmetric gradient case. [PDF]

Calc Var Partial Differ Equ
Almi S, Davoli E, Kubin A, Tasso E.
europepmc   +1 more source

Sustainable Energy Pathways in Ageing Societies: Heterogeneous Effects of Socioeconomic and Climate Factors

Sustainable Development, EarlyView.
ABSTRACT This study investigates how population ageing shapes sustainable energy pathways and introduces a novel multidimensional index to measure sustainable energy performance. The index is constructed using an entropy weighting method and measures progress across the main pillars of SDG7.
Ramez Abubakr Badeeb, Ziqing Lin
wiley   +1 more source