List questions from dynamical-systems

Published on 26 Mar 2026 - 8:15

80

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Global minimum on $\cos x+\cos kx$; $k$ irrational

Published on 26 Mar 2026 - 21:54

629

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Simple connectedness of basin of attraction

Published on 09 Apr 2026 - 3:39

2.2k

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Zero Lyapunov exponent for chaotic systems

Published on 07 Apr 2026 - 11:33

138

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Sum of incoming weights in probabilistic system sum to 1

Published on 26 Mar 2026 - 1:10

42

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Let $D$ be the disk with two disks cut out. Show that any vector field defined on $D$ has at least one equilibrium point.

Published on 01 Apr 2026 - 15:33

168

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Is it possible for a node-node bifurcation to exist?

Published on 26 Mar 2026 - 9:45

149

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Pointwise ergodic theorem & amenable semigroups

Published on 09 Apr 2026 - 8:22

20

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Assume that at each point of $γ$ the vector field $f$ is either tangent or points toward the interior of $Ω$. Then $f$ has a zero inside $Ω$.

Published on 01 Dec 2016 - 16:12

139

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how to prove that the system is transitive

Published on 01 Dec 2016 - 17:43

373

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How to extract PID parameters from a controller in zpk form?

Published on 25 Mar 2026 - 6:00

153

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Rigorous Understanding of Behavior around Equilibrium Points of this Dynamical System

Published on 01 Dec 2016 - 23:29

596

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Conditions for controllability canonical form to be non-observable but detectable

Published on 25 Mar 2026 - 17:26

251

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What is exactly a Hamiltonian or Lagrangian?

Published on 02 Dec 2016 - 16:12

101

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Show that any periodic points of a one-dimensional ODE is a fixed point

Published on 03 Dec 2016 - 5:22

List Question

Sensitivity to initial conditions and topological transitivity

Global minimum on $\cos x+\cos kx$; $k$ irrational

Simple connectedness of basin of attraction

Zero Lyapunov exponent for chaotic systems

Sum of incoming weights in probabilistic system sum to 1

Let $D$ be the disk with two disks cut out. Show that any vector field defined on $D$ has at least one equilibrium point.

Is it possible for a node-node bifurcation to exist?

Pointwise ergodic theorem & amenable semigroups

Assume that at each point of $γ$ the vector field $f$ is either tangent or points toward the interior of $Ω$. Then $f$ has a zero inside $Ω$.

how to prove that the system is transitive

How to extract PID parameters from a controller in zpk form?

Rigorous Understanding of Behavior around Equilibrium Points of this Dynamical System

Conditions for controllability canonical form to be non-observable but detectable

What is exactly a Hamiltonian or Lagrangian?

Show that any periodic points of a one-dimensional ODE is a fixed point

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