Extension of the Gaussian free field correlation theorem without ordering assumptions

Let N=1,2,N=1,2,\dots, let ϰj=(νj,ηj,τj)D\varkappa_j=(\nu_j,\eta_j,\tau_j)\in\mathcal D be distinct triples, and let Ωj=Ω(νj,ηj,τj)\Omega_j=\Omega(\nu_j,\eta_j,\tau_j). The correlation formula of Theorem 1.17 is the moment formula with covariance given by the Green function

G(z,w)=12πlnzwzwˉ\mathcal G(z,w)=-\frac{1}{2\pi}\ln\left|\frac{z-w}{z-\bar w}\right|

without imposing the ordering assumptions τ1τ2τN\tau_1\leq\tau_2\leq\dots\leq\tau_N and η1η2ηN\eta_1\geq\eta_2\geq\dots\geq\eta_N, provided that the Ω\Omega-images of all the triples are pairwise distinct. Correlation theorem extension. The statement of Theorem 1.17 remains valid without the ordering assumption, provided that the points Ω1,,ΩN\Omega_1,\dots,\Omega_N are pairwise distinct.

Sources & referencesView supporting material

Primary source

Patrik L. Ferrari and Alexei Borodin, “Anisotropic growth of random surfaces in 2+1 dimensions”, arXiv:0804.3035 (2008).

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