We compute the Coxeter polynomial of a family of Salem trees, and also the limit of the spectral radii of their Coxeter transformations as the number of their vertices tends to infinity. We also prove that if z is a root of multiplicities for the Coxeter polynomials of the trees respectively, then z is a root for the Coxeter polynomial of their join, of multiplicity at least where .
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-cm141-2-6, author = {Charalampos A. Evripidou}, title = {Coxeter polynomials of Salem trees}, journal = {Colloquium Mathematicae}, volume = {139}, year = {2015}, pages = {209-226}, zbl = {1339.16016}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm141-2-6} }
Charalampos A. Evripidou. Coxeter polynomials of Salem trees. Colloquium Mathematicae, Tome 139 (2015) pp. 209-226. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm141-2-6/