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The perimeter generating function of punctured staircase polygons

Anthony J. Guttmann, Iwan Jensen

cond-mat.stat-mecharXiv:cond-mat/0603833

Abstract

Using a simple transfer matrix approach we have derived very long series expansions for the perimeter generating function of punctured staircase polygons (staircase polygons with a single internal staircase hole). We find that all the terms in the generating function can be reproduced from a linear Fuchsian differential equation of order 8. We perform an analysis of the properties of the differential equation.

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