3 papers
math.DS2026
Transverse foliations for two-degree-of-freedom mechanical systems
Naiara V. de Paulo, Seongchan Kim, Pedro A. S. Salomão +1
We investigate the dynamics of a two-degree-of-freedom mechanical system for energies slightly above a critical value. The critical set of the potential function is assumed to cont…
math.GT2025
Algebraic Mapping Class Group Rigidity
Seong Youn Kim
Let and be a connected oriented surface of genus with punctures. The -character variety of has a rigid relative automorphi…
math.DS2025
On invariants of families of lemniscate motions in the two-center problem
Hanna Haeussler, Seongchan Kim
We determine four topological invariants introduced by Cieliebak-Frauenfelder-Zhao, based on Arnold's -invariant, of periodic lemniscate motions in Euler's two-center problem.