4 papers
Geometric Stratification for Singular Configurations of the P3P Problem via Local Dual Space
Xueying Sun, Zijia Li, Nan Li
This paper investigates singular configurations of the P3P problem. Using local dual space, a systematic algebraic-computational framework is proposed to give a complete geometric…
Instability of anchored spirals in geometric flows
Anthony Cortez, Nan Li, Nathan Mihm +3
We investigate existence, stability, and instability of anchored rotating spiral waves in a model for geometric curve evolution. We find existence in a parameter regime limiting on…
Anchored spirals in the driven curvature flow approximation
Nan Li, Arnd Scheel
We study existence, asymptotics, and stability of spiral waves in a driven curvature approximation, supplemented with an anchoring condition on a circle of finite radius. We analyz…
Exceptional nexus in Bose-Einstein condensates with collective dissipation
Chenhao Wang, Nan Li, Jin Xie +6
In multistate non-Hermitian systems, higher-order exceptional points and exotic phenomena with no analogues in two-level systems arise. A paradigm is the exceptional nexus (EX), a…