Area-perimeter generating functions of lattice walks: q-series and their asymptotics
Seminar Room 1, Newton Institute
AbstractWe present results on the generating function of a lattice model of an adsorbing polymer, realised as partially directed walks above a skewed line, weighted with respect to the number of contacts and the enclosed area. The solution is in form of a quotient of two q-Bessel functions, and the singular limit as q approaches 1 is of fundamental importance in the phase diagram of the model.
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