2 papers
math.RA2026
Laws for triangular matrices
Xun Hu, Yanfeng Luo, Mikhail Volkov
We investigate identities satisfied by monoids of triangular matrices over fields and over additively idempotent semirings with 0 and 1, and exhibit several new instances in which…
math.GR2019
Identities of the Kauffman Monoid
Yuzhu Chen, Xun Hu, N. V. Kitov +2
We give a transparent combinatorial characterization of the identities satisfied by the Kauffman monoid . Our characterization leads to a polynomial time algorithm t…