Distribution laws for integrable eigenfunctions

Details Distribution laws for integrable eigenfunctions Distribution laws for integrable eigenfunctions

2003-06-11

arxiv.org/abs/math/0306189v1

Ann. Inst. Fourier (Grenoble) 54 (2004), 1497-1546.

Mathematics

Complex Variables

33 pages, 3 figures

Scientific paper

We determine the asymptotics of the joint eigenfunctions of the torus action on a toric Kahler variety. Such varieties are models of completely integrable systems in complex geometry. We first determine the pointwise asymptotics of the eigenfunctions, which show that they behave like Gaussians centered at the corresponding classical torus. We then show that there is a universal Gaussian scaling limit of the distribution function near its center. We also determine the limit distribution for the tails of the eigenfunctions on large length scales. These are not universal but depend on the global geometry of the toric variety and in particular on the details of the exponential decay of the eigenfunctions away from the classically allowed set.

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