Random embeddings of graphs: The expected number of faces in most graphs is logarithmic
A random 2-cell embedding of a connected graph G in some orientable surface is obtained
by choosing a random local rotation around each vertex. Under this setup, the number of …
by choosing a random local rotation around each vertex. Under this setup, the number of …
Expected number of faces in a random embedding of any graph is at most linear
JC Loth, B Mohar - Combinatorics, Probability and Computing, 2023 - cambridge.org
A random two-cell embedding of a given graph is obtained by choosing a random local
rotation around every vertex. We analyse the expected number of faces of such an …
rotation around every vertex. We analyse the expected number of faces of such an …
On the average number of cycles in conjugacy class products
JC Loth, A Rattan - arxiv preprint arxiv:2310.06659, 2023 - arxiv.org
We show that for the product of two fixed point free conjugacy classes, the average number
of cycles is always very similar. Specifically, our main result is that for a randomly chosen …
of cycles is always very similar. Specifically, our main result is that for a randomly chosen …
New bounds for the average genus and average number of faces of a simple graph
Y Chen, Z Gao - Discrete Mathematics, 2024 - Elsevier
Let G be a connected simple graph with minimum degree larger than 1. Let v (G), e (G)
denote the number of vertices and edges of G, respectively. We show that the average …
denote the number of vertices and edges of G, respectively. We show that the average …
[HTML][HTML] Asymptotics of local face distributions and the face distribution of the complete graph
JC Loth - European Journal of Combinatorics, 2024 - Elsevier
We are interested in the distribution of the number of faces across all the 2− cell embeddings
of a graph, which is equivalent to the distribution of genus by Euler's formula. In order to …
of a graph, which is equivalent to the distribution of genus by Euler's formula. In order to …
[PDF][PDF] Graph embeddings and permutation products
J Campion Loth - 2023 - summit.sfu.ca
For some A, B⊆ Sn, determining the cycle structure of the multiset AB={a· b: a∈ A, b∈ B} is
a problem arising in several different areas of mathematics. When the sets of permutations A …
a problem arising in several different areas of mathematics. When the sets of permutations A …
Random Embeddings of Graphs: The Expected Number of Faces in Most Graphs is Logarithmic
J Campion Loth, K Halasz, T Masařík… - Proceedings of the …, 2024 - publications.cuni.cz
A random 2-cell embedding of a connected graph G in some orientable surface is obtained
by choosinga random local rotation around each vertex. Under this setup, the number of …
by choosinga random local rotation around each vertex. Under this setup, the number of …
The average Euler-genus of the vertex-amalgamation of signed graphs
Y Chen - arxiv preprint arxiv:2204.06985, 2022 - arxiv.org
In this paper, we first generalize a theorem for counting the number of faces of an oriented
embedding of a graph that passing through a given cut-edge set [S. Stahl, Trans. Amer …
embedding of a graph that passing through a given cut-edge set [S. Stahl, Trans. Amer …
Expected number of faces in a random embedding of any graph is at most linear.
J Campion Loth, B Mohar - Combinatorics, Probability & …, 2023 - search.ebscohost.com
A random two-cell embedding of a given graph $ G $ is obtained by choosing a random
local rotation around every vertex. We analyse the expected number of faces of such an …
local rotation around every vertex. We analyse the expected number of faces of such an …