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Analytic Combinatorics of Lattice Paths: Enumeration and Asymptotics for the Area
Abstract : This paper tackles the enumeration and asymptotics of the area below directed lattice paths (walks on $\mathbb{N}$ with a finite set of jumps). It is a nice surprise (obtained via the "kernel method'') that the generating functions of the moments of the area are algebraic functions, expressible as symmetric functions in terms of the roots of the kernel. For a large class of walks, we give full asymptotics for the average area of excursions ("discrete'' reflected Brownian bridge) and meanders ("discrete'' reflected Brownian motion). We show that drift is not playing any role in the first case. We also generalise previous works related to the number of points below a path and to the area between a path and a line of rational slope.
Cited literature [27 references]
https://hal.inria.fr/hal-01184683
Contributor : Coordination Episciences Iam <>
Submitted on : Monday, August 17, 2015 - 4:22:37 PM
Last modification on : Saturday, February 15, 2020 - 1:58:23 AM
Long-term archiving on: : Wednesday, November 18, 2015 - 10:44:19 AM
Contributor : Coordination Episciences Iam <>
Submitted on : Monday, August 17, 2015 - 4:22:37 PM
Last modification on : Saturday, February 15, 2020 - 1:58:23 AM
Long-term archiving on: : Wednesday, November 18, 2015 - 10:44:19 AM
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