The kth local exponent of doubly symmetric primitive matrices. - Shexi Chen; Bolian Liu (Appl. Math. Lett., 2006)

Matrices with maximum exponent in the class of central symmetric primitive matrices. - Shexi Chen (Ars Comb., 2006)

Matrices with maximum kth local exponent in the class of doubly symmetric primitive matrices. - Shexi Chen; Bolian Liu (Discret. Math., 2008)