unitriangular

English

Etymology

From uni- +‎ triangular.

Adjective

unitriangular (not comparable)

1. (mathematics) Of a matrix: such that the entries on the main diagonal of a (upper or lower) triangular matrix are all 1.
   • 2015, Funda Gul, Alexei G. Myasnikov, Mahmood Sohrabi, “Distortion of embeddings of a torsion-free finitely generated nilpotent group into a unitriangular group”, in arXiv‎^[1]:

     In this paper we study distortion of various well-known embeddings of finitely generated torsion-free nilpotent groups $G$ into unitriangular groups $UT_{n}(\mathbb {Z} )$.