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Pengfei's user avatar
Pengfei's user avatar
Pengfei
  • Member for 13 years, 4 months
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15 votes

Is there a dynamical system such that every orbit is either periodic or dense?

6 votes
Accepted

Invariant measures and recurrent sets.

5 votes

Invariant subsets of $z \mapsto z^2$

4 votes

Are periodic billiard trajectories stable on a manifold with strictly convex boundary?

4 votes
Accepted

An absolutely continuous foliation, which is not transversely absolutely continuous

4 votes
Accepted

Conley Theorem (or fundamental theorem of dynamical systems)

3 votes

The Manneville-Pomeau map is topologically conjugate to a full one-sides shift on two symbols. Can you give the corresponding homeomorphism?

3 votes
Accepted

If the non wandering set is the whole space, then the recurrent set is dense?

3 votes
Accepted

Symplectic geometry and stability of orbits

3 votes
Accepted

Lyapunov exponent for circle diffeomorphisms

2 votes
Accepted

Density of periodic points and density of periodic measures

2 votes

When is the time one map of a suspension flow ergodic?

2 votes

Which surfaces admit unbounded-length simple geodesics?

2 votes
Accepted

Hyperbolic sets

1 vote

probability measures with entropy equal to nonnegative number

1 vote

Is the composition of non-wandering maps still non-wandering?

0 votes

Supremum amongst Kolmogorov-Sinai entropies: ergodic or just invariant measures.

0 votes

Hyperbolic sets that are not locally maximal