Results 121 to 130 of about 894 (220)

Koopman Operator theory applied to Lambert’s problem with a spectral behavior analysis

Acta Astronautica
Lambert’s problem has been long studied in the context of space operations; its solution enables accurate orbit determination and spacecraft guidance. This work presents an approximate-analytical solution to Lambert’s problem using the Koopman Operator (KO).
Julia Pasiecznik, Simone Servadio, Richard Linares   +2 more
openaire   +2 more sources

Tuned Out or Dialed In: How Attributions Shape Observer Reactions to Music Listeners at Work

Personnel Psychology, Volume 79, Issue 2, Page 223-250, Summer 2026.
ABSTRACT Music listening while working is prevalent in contemporary workplaces, with extensive research demonstrating its psychological and behavioral implications. Shifting focus from intra‐individual outcomes, the present research examines the social implications of music listening at work.
Oguz Gencay, Trevor Foulk, Michael Schaerer   +2 more
wiley   +1 more source

Deep learning for structure-preserving universal stable Koopman-inspired embeddings for nonlinear canonical Hamiltonian dynamics

Machine Learning: Science and Technology
Discovering a suitable coordinate transformation for nonlinear systems enables the construction of simpler models, facilitating prediction, control, and optimization for complex nonlinear systems.
Pawan Goyal, Süleyman Yıldız, Peter Benner   +2 more
doaj   +1 more source

Myocellular adaptations to short‐term weighted wheel‐running exercise are largely conserved during C26‐tumour induction in male and female mice

Experimental Physiology, Volume 111, Issue 6, Page 3039-3054, 1 June 2026.
Abstract This study investigated whether performing a translatable murine model of concurrent training after tumour induction affects adaptations in juvenile male and female tumour‐bearing mice. Male and female Balb/c mice were injected bilaterally with colon‐26 adenocarcinoma (C26) cells or PBS at 8 weeks of age.
Stavroula Tsitkanou, Pieter Koopmans, Calvin Peterson, Ana Regina Cabrera, Ruqaiza Muhyudin, Francielly Morena, Sabin Khadgi, Eleanor R. Schrems, Tyrone A. Washington, Kevin A. Murach, Nicholas P. Greene   +10 more
wiley   +1 more source

Superposition of Doppler‐Shifting Magnetopause Kelvin‐Helmholtz Modes Through Dynamic Mode Decomposition of a Global MHD Simulation

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Kelvin‐Helmholtz instability (KHI) mediates the viscous‐like solar‐terrestrial interaction by generating magnetopause surface waves that quickly become non‐linear. Basic theory predicts the locally most‐unstable linear wave dominates.
H. M. Kelly, M. O. Archer, J. P. Eastwood, M. Heyns, J. W. B. Eggington, J. P. Chittenden   +5 more
wiley   +1 more source

Circular Restricted Three Body Manifold Trajectories via Koopman Operator Theory

There are a multitude of computational techniques capable of modeling the behavior of nonlinear dynamic systems over time. In the field of astrodynamics, the most frequently used tools are numerical integrators, specifically Runge-Kutta algorithms. These
Langton, Lindsey
core  

Data-Driven Voltage Control Method of Active Distribution Networks Based on Koopman Operator Theory

Mathematics
The advent of large-scale distributed generation (DG) has introduced several challenges to the voltage control of active distribution networks (ADNs).
Zhaobin Du, Xiaoke Lin, Guoduan Zhong, Hao Liu, Wenxian Zhao   +4 more
doaj   +1 more source

Periodic approximations and spectral analysis of the Koopman operator: theory and applications [PDF]

, 2018
Modeling complex dynamical systems, with an eye towards accurate reconstruction of individual trajectories, is an inherently difficult proposition. This difficulty, which arises from exponential sensitivity to initial conditions, also makes it nearly ...
Govindarajan, Nithin
core  

An operator-theoretic viewpoint to non-smooth dynamical systems: Koopman analysis of a hybrid pendulum

, 2016
We apply an operator-theoretic viewpoint to a class of non-smooth dynamical systems that are exposed to event-triggered state resets. The considered benchmark problem is that of a pendulum which receives a downward kick at certain fixed angles.
Govindarajan, Nithin, Arbabi, Hassan, Emma Tegling, Igor Mezic, Hassan Arbabi, Louis van Blargian, Tegling, Emma,, Matchen, Timothy, Nithin Govindarajan, van Blargian, Louis, Mezic, Igor, Timothy Matchen   +11 more
core   +1 more source

A Comprehensive Review of Matrix Equations in Dynamical Systems and Control Theory

Journal of Applied Mathematics
Matrix equations are of foundational importance in the modeling, investigation, and control of dynamical systems. This review discusses various classes of matrix equations, their solutions, and their relevance in control theory and dynamical systems. Key
Chacha Stephen Chacha
doaj   +1 more source