Portugaliae Mathematica

Yannis Tsertos:
On the Locally $m$-Convex Algebra $L_{\Gamma}(E)$ and a Differential-Geometric Interpretation of it

Valery Marenich, Irwen Valle Guadalupe:
Some Inequalities for Immersed Surfaces

Michel Valadier:
Admissible Functions in Two-Scale Convergence

Waldyr M. Oliva, Placido Z. Taboas:
Existence of Periodic Orbits, Set of Global Solutions and Behavior Near Equilibrium for Volterra Equations of Retarded Type

Carlos Tenreiro:
Loi Asymptotique des Erreurs Quadratiques Intégrées des Estimateurs a Noyau de la Densité et de la Régression sous des Conditions de Dépendance

I. Mihai, L. Nicolescu, R. Rosca:
On Para-Kählerian Manifolds $M(J,g)$ and on Skew Symmetric Killing Vector Fields Carried by $M$

Radu Zaharopol:
On the Banach Principle