We obtain an elementary geometrical proof of the classical Perron-Frobenius theorem for non-negative matrices A by using the Brouwer fixed-point theorem and by studying the dynamics of the action of A on convenient subsets of Rn.
@article{urn:eudml:doc:44308, title = {A geometric proof of the Perron-Frobenius theorem.}, journal = {Revista Matem\'atica de la Universidad Complutense de Madrid}, volume = {5}, year = {1992}, pages = {57-63}, zbl = {0784.15009}, mrnumber = {MR1183426}, language = {en}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:44308} }
Borobia, Alberto; Trías, Ujué R. A geometric proof of the Perron-Frobenius theorem.. Revista Matemática de la Universidad Complutense de Madrid, Tome 5 (1992) pp. 57-63. http://gdmltest.u-ga.fr/item/urn:eudml:doc:44308/