Vol. 5, No. 4, 2012

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ISSN: 1944-4184 (e-only)
ISSN: 1944-4176 (print)

Vol. 5, No. 4, 2012

Theoretical properties of the length-biased inverse Weibull distribution
379–391

Jing Kersey and Broderick O. Oluyede

The firefighter problem for regular infinite directed grids
393–409

Daniel P. Biebighauser, Lise E. Holte and Ryan M. Wagner

Induced trees, minimum semidefinite rank, and zero forcing
411–420

Rachel Cranfill, Lon H. Mitchell, Sivaram K. Narayan and Taiji Tsutsui

A new series for $\pi$ via polynomial approximations to arctangent
421–430

Colleen M. Bouey, Herbert A. Medina and Erika Meza

A mathematical model of biocontrol of invasive aquatic weeds
431–447

John Alford, Curtis Balusek, Kristen M. Bowers and Casey Hartnett

Irreducible divisor graphs for numerical monoids
449–462

Dale Bachman, Nicholas Baeth and Craig Edwards

An application of Google's PageRank to NFL rankings
463–471

Laurie Zack, Ron Lamb and Sarah Ball

Fool's solitaire on graphs
473–480

Robert A. Beeler and Tony K. Rodriguez

Newly reducible iterates in families of quadratic polynomials
481–495

Katharine Chamberlin, Emma Colbert, Sharon Frechette, Patrick Hefferman, Rafe Jones and Sarah Orchard

Positive symmetric solutions of a second-order difference equation
497–504

Jeffrey T. Neugebauer and Charley L. Seelbach