Volume 68, No. 4 (2011)
Portugaliae Mathematica

pp. 369–380 Scarf lattice idealsHossein Sabzrou
pp. 381–387 A note on -gerbes and transgressionsMauro Spera
pp. 389–409 Global existence of small solutions to the Kerr–Debye model for the three-dimensional Cauchy problemMohamed Kanso
pp. 411–423 Two results on the rank partition of a matroidAndrew Berget
pp. 425–429 Cross varieties of aperiodic monoids with central idempotentsEdmond W. H. Lee
pp. 431–475 Newton’s method and secant methods: A longstanding relationship from vectors to matricesMarlliny MonsalveMarcos Raydan