The algebraic connectivity of two trees connected by an edge of infinite weight. Molitierno, Jason J.; Neumann, Michael — 2001 ELA. The Electronic Journal of Linear Algebra [electronic only]

Tight bounds on the algebraic connectivity of a balanced binary tree. Molitierno, Jason J.; Neumann, Michael; Shader, Bryan L. — 2000 ELA. The Electronic Journal of Linear Algebra [electronic only]