[图书][B] Crossing numbers of graphs

M Schaefer - 2018 - taylorfrancis.com
Crossing Numbers of Graphs is the first book devoted to the crossing number, an
increasingly popular object of study with surprising connections. The field has matured into a …

Twisted ways to find plane structures in simple drawings of complete graphs

O Aichholzer, A García, J Tejel, B Vogtenhuber… - Discrete & …, 2024 - Springer
Simple drawings are drawings of graphs in which the edges are Jordan arcs and each pair
of edges share at most one point (a proper crossing or a common endpoint). A simple …

A survey of graphs with known or bounded crossing numbers

K Clancy, M Haythorpe, A Newcombe - arXiv preprint arXiv:1901.05155, 2019 - arxiv.org
We present, to the best of the authors' knowledge, all known results for the (planar) crossing
numbers of specific graphs and graph families. The results are separated into various …

Unavoidable patterns in complete simple topological graphs

A Suk, J Zeng - Discrete & Computational Geometry, 2024 - Springer
We show that every complete n-vertex simple topological graph contains a topological
subgraph on at least (log n) 1/4-o (1) vertices that is weakly isomorphic to the complete …

Using SAT to study plane Hamiltonian substructures in simple drawings

H Bergold, S Felsner, MM Reddy… - arXiv preprint arXiv …, 2023 - arxiv.org
In 1988 Rafla conjectured that every simple drawing of a complete graph $ K_n $ contains a
plane, ie, non-crossing, Hamiltonian cycle. The conjecture is far from being resolved. The …

Empty Triangles in Generalized Twisted Drawings of 

A García, J Tejel, B Vogtenhuber… - … Symposium on Graph …, 2022 - Springer
Simple drawings are drawings of graphs in the plane or on the sphere such that vertices are
distinct points, edges are Jordan arcs connecting their endpoints, and edges intersect at …

Closing in on Hill's conjecture

J Balogh, B Lidicky, G Salazar - SIAM Journal on Discrete Mathematics, 2019 - SIAM
Borrowing László Székely's lively expression, we show that Hill's conjecture is
“asymptotically at least 98.5\% true.” This long-standing conjecture states that the crossing …

Towards crossing-free Hamiltonian cycles in simple drawings of complete graphs

O Aichholzer, J Orthaber, B Vogtenhuber - arXiv preprint arXiv:2303.15610, 2023 - arxiv.org
It is a longstanding conjecture that every simple drawing of a complete graph on $ n\geq 3$
vertices contains a crossing-free Hamiltonian cycle. We strengthen this conjecture to" there …

Short edges and noncrossing paths in complete topological graphs

A Suk - arXiv preprint arXiv:2307.08165, 2023 - arxiv.org
Let $ h (n) $ be the minimum integer such that every complete $ n $-vertex simple
topological graph contains an edge that crosses at most $ h (n) $ other edges. In 2009 …

On plane subgraphs of complete topological drawings

A García, A Pilz, J Tejel - arXiv preprint arXiv:2209.03072, 2022 - arxiv.org
Topological drawings are representations of graphs in the plane, where vertices are
represented by points, and edges by simple curves connecting the points. A drawing is …