𝔖 Bobbio Scriptorium
✦   LIBER   ✦

First order properties of random posets

✍ Scribed by Tomasz Łuczak


Publisher
Springer Netherlands
Year
1991
Tongue
English
Weight
397 KB
Volume
8
Category
Article
ISSN
0167-8094

No coin nor oath required. For personal study only.

✦ Synopsis


Let LB = s2(n, p) be a binary relation on the set [n] = { 1, ?, , n} such that Se(i, i) for every i and W(i,j) with probability p, independently for each pair i, j E [n], where i <j. Define < as the transitive closure of W and denote poset ([n], <) by R(n, p). We show that for any constant p probability of each first order property of R(n, p) converges as n + co.


📜 SIMILAR VOLUMES


Interval number of special posets and ra
✍ Tom Madej; Douglas B. West 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 473 KB

The interval number i(P) of a poset P is the smallest t such that P is a containment poset of sets that are unions of at most t real intervals. For the special poset Bn(k) consisting of the singletons and k-subsets of an n-element set, ordered by inclusion, i(B~(k))---min{k,nk + 1} if In~2-kl >~ n/2

The ANTI-order and the fixed point prope
✍ Boyu Li; E.C. Milner 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 670 KB

This paper settles a conjecture made in (Li [2]) that, if (PC: ~ ~< 2) is an ANTI-perfect sequence in a connected caccc poset having no one-way infinite fence, then either there are ~ < 2 and x e Pe\~+l such that Pc(> x) and P~(<x) are both fixed point free (fpf), in which case P is also fpf, or P h