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arXiv 1507.00482math.SGmath-phmath.DSmath.MP
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基于模型论的哈密顿量PDE的Floer理论

Floer theory for Hamiltonian PDE using model theory

Oliver Fabert

摘要:

在自然约束下,已知非线性薛定谔方程是哈密顿PDE,其在保希尔伯特范数的辛希尔伯特空间上定义了辛流。当势在时间上是单周期的,并且在传递到投射化之后,问阿诺德猜想的自然类比是否成立是有意义的。通过采用非标准模型论的方法,我们展示了如何从有限维推广到无限维。虽然我们的证明完全建立在有限维的结果,我们不要求任何非标准模型论的先验知识。

英文摘要:

Under natural restrictions it is known that a nonlinear Schrödinger equation is a Hamiltonian PDE which defines a symplectic flow on a symplectic Hilbert space preserving the Hilbert norm. When the potential is one-periodic in time and after passing to the projectivization, it makes sense to ask whether the natural analogue of the Arnold conjecture holds. By employing methods from non-standard model theory we show how Hamiltonian Floer theory can be generalized from finite to infinite dimensions. While our proof entirely builds on finite-dimensional results, we do not ask for any prior knowledge of non-standard model theory.

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