遍历论中的开普勒切变
Keplerian shear in ergodic theory
摘要:
许多可积的物理系统表现出开普勒切变。我们从遍历论的角度来看待这种现象,在那里它可以被看作是有条件地混合到一个不变的$σ$ -代数。在这种情况下,我们给出了一个充分的标准开普勒剪切出现在一个系统中,调查它的通用性,并在少数情况下,它的速度。一些额外的,非哈密顿,例子进行了讨论。
英文摘要:
Many integrable physical systems exhibit Keplerian shear. We look at this phenomenon from the point of view of ergodic theory, where it can be seen as mixing conditionally to an invariant $σ$-algebra. In this context, we give a sufficient criterion for Keplerian shear to appear in a system, investigate its genericity and, in a few cases, its speed. Some additional, non-Hamiltonian, examples are discussed.
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