## The Annals of Probability

### Classification of scaling limits of uniform quadrangulations with a boundary

#### Abstract

We study noncompact scaling limits of uniform random planar quadrangulations with a boundary when their size tends to infinity. Depending on the asymptotic behavior of the boundary size and the choice of the scaling factor, we observe different limiting metric spaces. Among well-known objects like the Brownian plane or the self-similar continuum random tree, we construct two new one-parameter families of metric spaces that appear as scaling limits: the Brownian half-plane with skewness parameter $\theta$ and the infinite-volume Brownian disk of perimeter $\sigma$. We also obtain various coupling and limit results clarifying the relation between these objects.

#### Article information

Source
Ann. Probab., Volume 47, Number 6 (2019), 3397-3477.

Dates
Revised: August 2018
First available in Project Euclid: 2 December 2019

https://projecteuclid.org/euclid.aop/1575277335

Digital Object Identifier
doi:10.1214/18-AOP1316

Mathematical Reviews number (MathSciNet)
MR4038036

#### Citation

Baur, Erich; Miermont, Grégory; Ray, Gourab. Classification of scaling limits of uniform quadrangulations with a boundary. Ann. Probab. 47 (2019), no. 6, 3397--3477. doi:10.1214/18-AOP1316. https://projecteuclid.org/euclid.aop/1575277335

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#### Supplemental materials

• Supplement to “Classification of scaling limits of uniform quadrangulations with a boundary.”. We provide the proofs of Lemmas 5.1, 5.2, 5.3 and 5.5, as well as the proof of Theorem 3.5, where the $\textsf{SCRT}$ appears in the limit.