# A tangent method derivation of the arctic curve for $q$-weighted paths with arbitrary starting points

Abstract : We use a tangent method approach to obtain the arctic curve in a model of non-intersecting lattice paths within the first quadrant, including a $q$-dependent weight associated with the area delimited by the paths. Our model is characterized by an arbitrary sequence of starting points along the positive horizontal axis, whose distribution involves an arbitrary piecewise differentiable function. We give an explicit expression for the arctic curve in terms of this arbitrary function and of the parameter $q$. A particular emphasis is put on the deformation of the arctic curve upon varying $q$, and on its limiting shapes when $q$ tends to $0$ or infinity. Our analytic results are illustrated by a number of detailed examples.
Keywords :
Document type :
Journal articles
Domain :

Cited literature [19 references]

https://hal-cea.archives-ouvertes.fr/cea-02932285
Contributor : Emmanuelle de Laborderie <>
Submitted on : Tuesday, September 8, 2020 - 9:59:03 AM
Last modification on : Wednesday, April 14, 2021 - 12:12:21 PM
Long-term archiving on: : Wednesday, December 2, 2020 - 10:01:38 PM

### File

1810.07936v1.pdf
Files produced by the author(s)

### Citation

Philippe Di Francesco, Emmanuel Guitter. A tangent method derivation of the arctic curve for $q$-weighted paths with arbitrary starting points. Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2019, 52 (11), pp.115205. ⟨10.1088/1751-8121/ab03ff⟩. ⟨cea-02932285⟩

Record views