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arXiv · 2607.21521

A new recursive construction for large sets of Kirkman triple systems

Chen Wang
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Abstract

We give a recursive construction of an LKTS(7q + 2) from an LKTS(q + 2) and an auxiliary permutation structure on an abelian group of order q, which we call a cubic orthomorphism. We prove that cubic orthomorphisms exist whenever q is a product of prime powers congruent to 1 modulo 6. The construction yields, in particular, LKTSs of orders 93, 177, 219, 261, and 303.

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Chen Wang. 2026-07-23. A new recursive construction for large sets of Kirkman triple systems. https://arxiv.org/abs/2607.21521

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