Skip to main content Accessibility help
×
Hostname: page-component-89b8bd64d-5bvrz Total loading time: 0 Render date: 2026-05-07T13:39:40.325Z Has data issue: false hasContentIssue false

Latent Modes of Nonlinear Flows

A Koopman Theory Analysis

Published online by Cambridge University Press:  31 May 2023

Ido Cohen
Affiliation:
Technion - Israel Institute of Technology
Guy Gilboa
Affiliation:
Technion - Israel Institute of Technology

Summary

Extracting the latent underlying structures of complex nonlinear local and nonlocal flows is essential for their analysis and modeling. In this Element the authors attempt to provide a consistent framework through Koopman theory and its related popular discrete approximation - dynamic mode decomposition (DMD). They investigate the conditions to perform appropriate linearization, dimensionality reduction and representation of flows in a highly general setting. The essential elements of this framework are Koopman eigenfunctions (KEFs) for which existence conditions are formulated. This is done by viewing the dynamic as a curve in state-space. These conditions lay the foundations for system reconstruction, global controllability, and observability for nonlinear dynamics. They examine the limitations of DMD through the analysis of Koopman theory and propose a new mode decomposition technique based on the typical time profile of the dynamics.
Get access

Information

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Element purchase

Temporarily unavailable

Save element to Kindle

To save this element to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Latent Modes of Nonlinear Flows
  • Ido Cohen, Technion - Israel Institute of Technology, Guy Gilboa, Technion - Israel Institute of Technology
  • Online ISBN: 9781009323826
Available formats
×

Save element to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

Latent Modes of Nonlinear Flows
  • Ido Cohen, Technion - Israel Institute of Technology, Guy Gilboa, Technion - Israel Institute of Technology
  • Online ISBN: 9781009323826
Available formats
×

Save element to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

Latent Modes of Nonlinear Flows
  • Ido Cohen, Technion - Israel Institute of Technology, Guy Gilboa, Technion - Israel Institute of Technology
  • Online ISBN: 9781009323826
Available formats
×