English

Permutation representations and automorphisms of evolution algebras

Rings and Algebras 2025-01-14 v2 Combinatorics Group Theory

Abstract

We prove that the natural permutation representation of highly transitive finite groups cannot be realized as the full automorphism group of an idempotent, finite-dimensional evolution algebra acting on the set of lines spanned by its natural elements. Specifically, for any sufficiently large integer nn and k4k \geq 4, there does not exist an idempotent evolution algebra XX of dimension nn such that Aut(X)\operatorname{Aut}(X) is isomorphic to a proper kk-transitive subgroup of SnS_n. Nevertheless, we show that for any finite group GG, any permutation representation ξ ⁣:GSn\xi \colon G \to S_n, and any field k\Bbbk, there exists an idempotent, finite-dimensional evolution k\Bbbk-algebra XX such that Aut(X)G\operatorname{Aut}(X) \cong G, and the induced representation of Aut(X)\operatorname{Aut}(X) on the natural idempotents of XX is equivalent to ξ\xi.

Keywords

Cite

@article{arxiv.2401.05924,
  title  = {Permutation representations and automorphisms of evolution algebras},
  author = {Cristina Costoya and Pedro Mayorga and Antonio Viruel},
  journal= {arXiv preprint arXiv:2401.05924},
  year   = {2025}
}

Comments

14 pages, no figures; v2: updated references, minor corrections

R2 v1 2026-06-28T14:14:17.807Z