Dynamical systems

Slow manifold

In mathematics, the slow manifold of an equilibrium point of a dynamical system occurs as the most common example of a center manifold. One of the main methods of simplifying dynamical systems, is to reduce the dimension of the system to that of the slow manifold—center manifold theory rigorously justifies the modelling. For example, some global and regional models of the atmosphere or oceans resolve the so-called quasi-geostrophic flow dynamics on the slow manifold of the atmosphere/oceanic dynamics,and is thus crucial to forecasting with a climate model. In some cases, a slow manifold is defined to be the invariant manifold on which the dynamics are slow compared to the dynamics off the manifold. The slow manifold in a particular problem would be a sub-manifold of either the stable, unstable, or center manifold, exclusively, that has the same dimension of, and is tangent to, the eigenspace with an associated eigenvalue (or eigenvalue pair) that has the smallest real part in magnitude. This generalizes the definition described in the first paragraph. Furthermore, one might define the slow manifold to be tangent to more than one eigenspace by choosing a cut-off point in an ordering of the real part eigenvalues in magnitude from least to greatest. In practice, one should be careful to see what definition the literature is suggesting. (Wikipedia).

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What is a Manifold? Lesson 2: Elementary Definitions

This lesson covers the basic definitions used in topology to describe subsets of topological spaces.

From playlist What is a Manifold?

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From playlist Manifolds

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What is a Manifold? Lesson 6: Topological Manifolds

Topological manifolds! Finally! I had two false starts with this lesson, but now it is fine, I think.

From playlist What is a Manifold?

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Today, we introduce the notion of tangent vectors and the tangent vector space at a point on a manifold.

From playlist Manifolds

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In this video, I give the basic intuition and definitions of manifolds. Email : fematikaqna@gmail.com Code : https://github.com/Fematika/Animations Notes : None yet

From playlist Manifolds

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What is a manifold?

I define topological manifolds. Motivated by the prospect of calculus on topological manifolds, I introduce smooth manifolds. At the end I point out how one needs to change the definitions, to obtain C^1 or even complex manifolds. To learn more about manifolds, see Lee's "Introduction to

From playlist Differential geometry

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Manifolds 2.1 : Smooth and Differentiable Structures

In this video, I introduce smooth manifolds, C^k manifolds, as well as these on manifolds with boundary, the chart transition maps and C^k maps between manifolds. Email : fematikaqna@gmail.com Code : https://github.com/Fematika/Animations Notes : None yet Playlist :

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What is a Manifold? Lesson 3: Separation

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From playlist What is a Manifold?

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Stochastic Model Reduction in Climate Science by Georg Gottwald (Part 4)

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From playlist Summer Research Program on Dynamics of Complex Systems

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Dynamics of a Slow-Fast Predator-Prey Model with a Predator-Dependent...by Pranali Roy Chowdhury

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Revisiting the slow manifold of the Lorenz- Krishnamurthy quintet by A S Vasudeva Murthy

DATES Monday 23 May, 2016 - Saturday 23 Jul, 2016 VENUE Madhava Lecture Hall, ICTS, Bangalore APPLY This program is first-of-its-kind in India with a specific focus to provide research experience and training to highly motivated students and young researchers in the interdisciplinary field

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From playlist Automobile Engineering.

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Theodore Vo: Canards, Cardiac Cycles, and Chimeras

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From playlist SMRI Seminars

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From playlist TIPPING POINTS IN COMPLEX SYSTEMS (HYBRID, 2022)

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Manifolds 1.4 : Topological Properties

In this video, I introduce the fact that manifolds have a countable basis of precompact coordinate balls, are locally compact, are locally path connected, and are paracompact. Email : fematikaqna@gmail.com Code : https://github.com/Fematika/Animations Notes : None yet Playlist : https://w

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Deep Learning Lecture 7.2 - Slow Manifolds

Learning Slow Manifolds with Markovian methods: Introduction and learning problem.

From playlist Deep Learning Lecture

Related pages

Invariant subspace | Bifurcation theory | Center manifold | Dirichlet boundary condition | Equilibrium point | Random walk | Emergence | Generalized eigenvector | Mathematics | Dynamical system | Ordinary differential equation | Ornstein–Uhlenbeck process | Robin boundary condition | Neumann boundary condition | Stochastic differential equation | Partial differential equation | Edward Norton Lorenz | Invariant manifold