JournalspmVol. 76, No. 1Volume 76, No. 1 (2019) Portugaliae Mathematicapp. 1–28Invariant measures for the two-dimensional averaged-Euler equationsAlexandra Symeonidespp. 29–48C1-generic sectional Axiom A flows have only trivial symmetriesWescley BonomoPaulo Varandaspp. 49–56The universal bound property for a class of second order ODEsMama AbdelliAlain Harauxpp. 57–100Courant-sharp Robin eigenvalues for the square and other planar domainsKatie GittinsBernard Helffer
pp. 57–100Courant-sharp Robin eigenvalues for the square and other planar domainsKatie GittinsBernard Helffer