A note on the Cameron-Praeger conjecture

Ximin Wang , Zheng Huang , Xiaogang Zhang , Weijun Liu

Electronic Research Archive ›› 2026, Vol. 34 ›› Issue (4) : 2243 -2260.

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Electronic Research Archive ›› 2026, Vol. 34 ›› Issue (4) :2243 -2260. DOI: 10.3934/era.2026101
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A note on the Cameron-Praeger conjecture
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Abstract

The Cameron-Praeger conjecture stands as a central problem at the intersection of group theory and combinatorial design, and has inspired sustained research by mathematicians worldwide for decades. In this paper, we took a step forward in the proof of the Cameron-Praeger conjecture. We studied a special case of the famous Cameron-Praeger conjecture in design theory and proved that there are no block-transitive 6-(v,k, 2) designs with k dividing v.

Keywords

Cameron-Praeger conjecture / block-transitive / Camina-Gagen condition / 6-designs / 3-homogeneous permutation groups

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Ximin Wang, Zheng Huang, Xiaogang Zhang, Weijun Liu. A note on the Cameron-Praeger conjecture. Electronic Research Archive, 2026, 34 (4) : 2243-2260 DOI:10.3934/era.2026101

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