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The perimeter generating function of punctured staircase polygons

Anthony J Guttmann et al 2006 J. Phys. A: Math. Gen. 39 3871-3882   doi: 10.1088/0305-4470/39/15/002  Help

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Anthony J Guttmann and Iwan Jensen
ARC Centre of Excellence for Mathematics and Statistics of Complex Systems, Department of Mathematics and Statistics, The University of Melbourne, Victoria 3010, Australia
E-mail: tonyg@ms.unimelb.edu.au and I.Jensen@ms.unimelb.edu.au

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.

PACS numbers: 05.50.+q, 05.70.Jk, 02.10.Ox

Print publication: Issue 15 (14 April 2006)
Received 15 December 2005
Published 29 March 2006

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