Volume 76, No. 1 (2019)
Portugaliae Mathematica
pp. 1–28 Invariant measures for the two-dimensional averaged-Euler equationsAlexandra Symeonides
pp. 29–48 -generic sectional Axiom A flows have only trivial symmetriesWescley BonomoPaulo Varandas
pp. 49–56 The universal bound property for a class of second order ODEsMama AbdelliAlain Haraux
pp. 57–100 Courant-sharp Robin eigenvalues for the square and other planar domainsKatie GittinsBernard Helffer