Convergence proof for first-order position-based dynamics: An efficient scheme for inequality constrained ODEs

S Plunder, S Merino-Aceituno - arXiv preprint arXiv:2310.01215, 2023 - arxiv.org
NVIDIA researchers have pioneered an explicit method, position-based dynamics (PBD), for
simulating systems with contact forces, gaining widespread use in computer graphics and …

Examples for separable control Lyapunov functions and their neural network approximation

L Grüne, M Sperl - IFAC-PapersOnLine, 2023 - Elsevier
In this paper, we consider nonlinear control systems and discuss the existence of a
separable control Lyapunov function. To this end, we assume that the system can be …

Microgrid power sharing framework for software defined networking and cybersecurity analysis

REP Guzmán, M Rivera, PW Wheeler… - IEEE …, 2022 - ieeexplore.ieee.org
Hierarchical control is a widely used strategy that can increase resilience and improve the
reliability of the electrical network based on microgrid global variables. The large amounts of …

Accelerated gradient methods for nonconvex optimization: Escape trajectories from strict saddle points and convergence to local minima

R Dixit, M Gurbuzbalaban, WU Bajwa - arXiv preprint arXiv:2307.07030, 2023 - arxiv.org
This paper considers the problem of understanding the behavior of a general class of
accelerated gradient methods on smooth nonconvex functions. Motivated by some recent …

Examples for existence and non-existence of separable control Lyapunov functions

L Grüne, M Sperl - 2022 - epub.uni-bayreuth.de
In this paper, we consider nonlinear control systems and discuss the existence of a
separable control Lyapunov function. To this end, we assume that the system can be …

Sufficient conditions for instability of the subgradient method with constant step size

C Josz, L Lai - SIAM Journal on Optimization, 2024 - SIAM
We provide sufficient conditions for instability of the subgradient method with constant step
size around a local minimum of a locally Lipschitz semialgebraic function. They are satisfied …

Asymptotic behavior of Volterra type discrete dynamical systems

DB Eshmamatova, RN Ganikhodzhaev - AIP Conference Proceedings, 2024 - pubs.aip.org
One of the most important problems in the theory of dynamical systems is the investigation of
the asymptotic behavior of trajectories. To study this problem, there are a number of classical …

Stability of first-order methods in tame optimization

L Lai - 2024 - search.proquest.com
Modern data science applications demand solving large-scale optimization problems. The
prevalent approaches are first-order methods, valued for their scalability. These methods are …

Approximation of Separable Control Lyapunov Functions with Neural Networks

M Sperl, J Mysliwitz, L Grüne - 2023 - epub.uni-bayreuth.de
In this paper, we investigate the ability of deep neural networks to provide curse-of-
dimensionality-free approximations of control Lyapunov functions. To achieve this, we first …

Robot Navigation Through Cluttered Environments: A Lyapunov Based Control Design Approach (Extended Version)

P Braun, T Hamel, R Mahony - 2024 - hal.science
Control design for robotic systems guaranteeing safety and convergence properties in
cluttered environments is intrinsically challenging due to their potentially conflicting ob …