JournalspmVol. 68, No. 2

Volume 68, No. 2 (2011)

Portugaliae Mathematica

Port. Math. cover

pp. 125–147
Fixed point theorems for 1-set weakly contractive and pseudocontractive operators on an unbounded domain
Afif Ben AmarJesús Garcia-Falset
DOI 10.4171/PM/1884
pp. 149–176
Linear motions in a periodically forced Kepler problem
Rafael Ortega
DOI 10.4171/PM/1885
pp. 177–183
On the endomorphism monoid of a profinite semigroup
Benjamin Steinberg
DOI 10.4171/PM/1886
pp. 185–189
The Fibonacci version of the Brocard–Ramanujan Diophantine equation
Diego Marques
DOI 10.4171/PM/1887
pp. 191–203
Bi-Lipschitz equivalent metrics on groups, and a problem in additive number theory
Melvyn B. Nathanson
DOI 10.4171/PM/1888
pp. 205–238
Uniform decay rates of coupled anisotropic elastodynamic/Maxwell equations with nonlinear damping
Cleverson Roberto da LuzGustavo Alberto Perla Menzala
DOI 10.4171/PM/1889