有限链自同态半环的有限基问题
群论
2026-05-05 v2
摘要
对于每个半格 ,其自同态集合 在逐点加法和复合下构成一个半环。我们证明了 3 元素链的所有自同态半环没有有限恒等基。结合 Dolinka 的早期结果(The finite basis problem for endomorphism semirings of finite semilattices with zero, Algebra Universalis 61, 441-448 (2009)),这给出了形如 (其中 为有限链)的半环的有限基问题的完整解答。
引用
@article{arxiv.2312.01770,
title = {The finite basis problem for endomorphism semirings of finite chains},
author = {Sergey V. Gusev and Mikhail V. Volkov},
journal= {arXiv preprint arXiv:2312.01770},
year = {2026}
}
备注
24 pages, 9 figures. Version 2 fixes a problem in the main construction from Section 5 and includes several minor improvements