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PreprintCC BY 4.0arXiv

Threshold existence for random NAE-k-SAT and random hypergraph $2$-colourability

Abstract

The existence of limiting threshold densities for random hypergraph $2$-colourability and random NAE-k-SAT was conjectured in earlier work, including Achlioptas and Moore [RANDOM 2002] and Coja-Oghlan and Panagiotou [STOC 2012]. We prove these conjectures for all k≥ 3. We also show that α2−colk ≤ αNAEk for each k≥ 3.

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BibTeX
@misc{zakharov2026threshold,
  title = {{Threshold existence for random NAE-$k$-SAT and random hypergraph $2$-colourability}},
  author = {Pavel Zakharov},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.01338},
  eprint = {2611.01338},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.01338},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Threshold existence for random NAE-k-SAT and random hypergraph $2$-colourability
AU  - Pavel Zakharov
PY  - 2026
DA  - 2026/11/01
PB  - arXiv
DO  - 10.48550/arxiv.2611.01338
UR  - https://arxiv.org/abs/2611.01338
AB  - The existence of limiting threshold densities for random hypergraph $2$-colourability and random NAE-k-SAT was conjectured in earlier work, including Achlioptas and Moore [RANDOM 2002] and Coja-Oghlan and Panagiotou [STOC 2012]. We prove these conjectures for all k≥ 3. We also show that α^2−col_k ≤ α^NAE_k for each k≥ 3.
ER  -