We show that any compact semigroup of positive n × n matrices is similar (via a positive diagonal similarity) to a semigroup bounded by √n. We give examples to show this bound is best possible. We also consider the effect of additional conditions on the semigroup and obtain improved bounds in some cases.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm8421-3-2016, author = {Leo Livshits and Gordon MacDonald and Laurent Marcoux and Heydar Radjavi}, title = {Universal bounds for positive matrix semigroups}, journal = {Studia Mathematica}, volume = {233}, year = {2016}, pages = {143-153}, zbl = {06575027}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm8421-3-2016} }
Leo Livshits; Gordon MacDonald; Laurent Marcoux; Heydar Radjavi. Universal bounds for positive matrix semigroups. Studia Mathematica, Tome 233 (2016) pp. 143-153. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm8421-3-2016/