Korteweg–de Vries方程
哈密顿量(控制论)
简并能级
数学
数学物理
拉格朗日
应用数学
哈密顿系统
物理
数学优化
非线性系统
量子力学
摘要
We consider the canonical formulation of Whitham’s variational principle for the KdV equation. This Lagrangian is degenerate and we have found it necessary to use Dirac’s theory of constrained systems in constructing the Hamiltonian. Earlier discussions of the Hamiltonian structure of the KdV equation were based on various different decompositions of the field which is avoided by this new approach.
科研通智能强力驱动
Strongly Powered by AbleSci AI