Rainbow spanning configurations in uniformly coloured pseudorandom graphs
Abstract
We prove a quantitative palette-transference principle for rainbow spanning configurations in uniformly edge-coloured pseudorandom graphs. The input to our transference principle is an embedding result of a spanning configuration in an appropriately bijumbled graph H with sufficiently large minimum degree. The output of our transference principle is the asymptotically almost sure existence of a rainbow copy of the same configuration in a uniformly edge-coloured graph G whose bijumbledness and minimum are comparable and sometimes coincide with those of H. We then apply our transference principle in order to asymptotically almost surely obtain Kk-factors, including perfect matchings, Hamilton cycles, and a prescribed bounded-degree spanning tree in bijumbled graphs with appropriate parameters. In all of our results, the palette size exceeds the size of the target configuration by ε n, where ε > 0 is arbitrarily small yet fixed, and n is the order of the configuration.
Related
- Exact-palette rainbow embeddings in uniformly coloured pseudorandom graphs
- Resilience of rainbow Hamilton cycles in pseudorandom graphs
- Rooted spanning forests in wheel graphs: Fibonacci-Lucas formulas and extremal root configurations
- Exact three-component covers in 2-coloured random bipartite graphs
- Partial Airy ideals and coloured blobbed topological recursion
BibTeX
@misc{aignerhorev2026rainbow,
title = {{Rainbow spanning configurations in uniformly coloured pseudorandom graphs}},
author = {Elad Aigner-Horev and Dan Hefetz and Yury Person and Michael Trushkin},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2609.26329},
eprint = {2609.26329},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.26329},
}
RIS
TY - UNPB
TI - Rainbow spanning configurations in uniformly coloured pseudorandom graphs
AU - Elad Aigner-Horev
AU - Dan Hefetz
AU - Yury Person
AU - Michael Trushkin
PY - 2026
DA - 2026/10/07
PB - arXiv
DO - 10.48550/arxiv.2609.26329
UR - https://arxiv.org/abs/2609.26329
AB - We prove a quantitative palette-transference principle for rainbow spanning configurations in uniformly edge-coloured pseudorandom graphs. The input to our transference principle is an embedding result of a spanning configuration in an appropriately bijumbled graph H with sufficiently large minimum degree. The output of our transference principle is the asymptotically almost sure existence of a rainbow copy of the same configuration in a uniformly edge-coloured graph G whose bijumbledness and minimum are comparable and sometimes coincide with those of H. We then apply our transference principle in order to asymptotically almost surely obtain K_k-factors, including perfect matchings, Hamilton cycles, and a prescribed bounded-degree spanning tree in bijumbled graphs with appropriate parameters. In all of our results, the palette size exceeds the size of the target configuration by ε n, where ε > 0 is arbitrarily small yet fixed, and n is the order of the configuration.
ER -