English

The local weak limit of $k$-dimensional hypertrees

Combinatorics 2024-10-03 v3 Probability

Abstract

Let C(n,k)\mathcal{C}(n,k) be the set of kk-dimensional simplicial complexes CC over a fixed set of nn vertices such that: (1) CC has a complete k1k-1-skeleton; (2) CC has precisely (n1k){{n-1}\choose {k}} kk-faces; (3) the homology group Hk1(C)H_{k-1}(C) is finite. Consider the probability measure on C(n,k)\mathcal{C}(n,k) where the probability of a simplicial complex CC is proportional to Hk1(C)2|H_{k-1}(C)|^2. For any fixed kk, we determine the local weak limit of these random simplicial complexes as nn tends to infinity. This local weak limit turns out to be the same as the local weak limit of the 11-out kk-complexes investigated by Linial and Peled.

Keywords

Cite

@article{arxiv.2101.11504,
  title  = {The local weak limit of $k$-dimensional hypertrees},
  author = {András Mészáros},
  journal= {arXiv preprint arXiv:2101.11504},
  year   = {2024}
}