Mathematics – Complex Variables
Scientific paper
2008-10-13
Mathematics
Complex Variables
35 pages, 4 figures. Several changes: Sections 2.4-2.6 expanded; Theorem 3.10 added; Section 3.4 rewritten
Scientific paper
We study discrete complex analysis and potential theory on a large family of planar graphs, the so-called isoradial ones. Along with discrete analogues of several classical results, we prove uniform convergence of discrete harmonic measures, Green's functions and Poisson kernels to their continuous counterparts. Among other applications, the results can be used to establish universality of the critical Ising and other lattice models.
Chelkak Dmitry
Smirnov Stanislav
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