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arXiv 2302.03514math.SG
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延迟Rabinowitz弗洛尔同调

Delayed Rabinowitz Floer Homology

Urs Frauenfelder

摘要:

本文研究了几种相互作用粒子的Rabinowitz弗洛尔同调。一般而言,Rabinowitz作用泛函在所有粒子同时平移时不变,但在每个粒子单独平移时不不变。延迟Rabinowitz作用泛函在单个时间平移下是不变的。虽然它的临界点方程看起来像一个Hamilton时滞方程,但它实际上是一个伪装的常微分方程,只不过是无时滞Rabinowitz作用泛函的临界点方程。我们甚至可以在不改变临界点及其作用的情况下,在两个作用泛函之间进行插值。此外,对于这些插值作用泛函,我们有一个适当的限制接触型假设下的梯度流线紧。

英文摘要:

In this article we study Rabinowitz Floer Homology for several interaction particles. In general Rabinowitz action functional is invariant under simultaneous time translation for all particles but not invariant if the times of each particle are translated individually. The delayed Rabinowitz action functional is invariant under individual time translation for each particle. Although its critical point equation looks like a Hamiltonian delay equation it is actually an ODE in disguise and nothing else than the critical point equation of the undelayed Rabinowitz action functional. We show that we can even interpolate between the two action functionals without changing the critical points and their actions. Moreover, for each of these interpolating action functionals we have compactness for gradient flow lines under a suitable restricted contact type assumption.

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