JournalspmVol. 66, No. 2Portugaliae MathematicaVolume 66, No. 2 (2009)pp. 131–145There is no odd perfect polynomial over <b>F</b><sub>2</sub> with four prime factorsLuis H. GallardoOlivier Rahavandrainypp. 147–158A note on common range of a class of co-analytic Toeplitz operatorsRomeo MeštrovićŽarko Pavićevićpp. 159–174Examples of optimal solutions of infinite horizon variational problems arising in continuum mechanicsAlexander J. Zaslavskipp. 175–190Holomorphic extension theorem for tempered ultrahyperfunctionsDaniel H. T. Francopp. 191–210Exponential stabilization of periodic solutions of a system of KdV equationsEleni BisogninVanilde BisogninJardel Morais Pereirapp. 211–223A note on the global regularity of steady flows of generalized Newtonian fluidsFrancesca Crispopp. 225–259Nonlinear stability properties of periodic travelling wave solutions of the classical Korteweg–de Vries and Boussinesq equationsLynnyngs Kelly Arruda

pp. 131–145There is no odd perfect polynomial over <b>F</b><sub>2</sub> with four prime factorsLuis H. GallardoOlivier Rahavandrainy

pp. 147–158A note on common range of a class of co-analytic Toeplitz operatorsRomeo MeštrovićŽarko Pavićević

pp. 159–174Examples of optimal solutions of infinite horizon variational problems arising in continuum mechanicsAlexander J. Zaslavski

pp. 191–210Exponential stabilization of periodic solutions of a system of KdV equationsEleni BisogninVanilde BisogninJardel Morais Pereira

pp. 211–223A note on the global regularity of steady flows of generalized Newtonian fluidsFrancesca Crispo

pp. 225–259Nonlinear stability properties of periodic travelling wave solutions of the classical Korteweg–de Vries and Boussinesq equationsLynnyngs Kelly Arruda