4 papers
Probabilistic Approaches to The Energy Equality in Forced Surface Quasi-Geostrophic Equations
Lin Wang, Zhengyan Wu
We explore probabilistic approaches to the deterministic energy equality for the forced Surface Quasi-Geostrophic (SQG) equation on a torus. First, we prove the zero-noise dynamica…
On the Dynamics of Invariant Graphs for Dissipative Twist Maps
Qi Li, Lin Wang
For two-parameter families of dissipative twist maps, we investigate the dynamics of invariant graphs as well as the thresholds for their existence and breakdown. Our main results…
On the Destruction of Invariant Lagrangian Graphs for Conformal Symplectic Twist Maps
Alfonso Sorrentino, Lin Wang
In this article we investigate the fragility of invariant Lagrangian graphs for dissipative maps, focusing on their destruction under small perturbations. Inspired by Herman's work…
Quantitative Destruction and Persistence of Lagrangian Torus in Hamiltonian Systems
Lin Wang
For an integrable Hamiltonian systems with degrees of freedom (), we consider quantitatively the existence and non-existence of the flow-invariant Lagrangian torus wit…