Portugaliae Mathematica

Title Publication Date Language Citations
Lax equations, factorization and Riemann–Hilbert problems2007/12/311
On the existence of positive solutions for a nonhomogeneous elliptic system2009/09/301
Inequalities for Riemann’s zeta function2009/09/301
Stability criteria for certain third order nonlinear delay differential equations2009/03/311
Every strict sum of cubes in $\mathbb F_4[t]$ is a strict sum of 6 cubes2008/06/301
Nonlinear stability properties of periodic travelling wave solutions of the classical Korteweg–de Vries and Boussinesq equations2009/06/301
Uniqueness at infinity in time for the Maxwell–Schrödinger system with arbitrarily large asymptotic data2008/12/311
Symplectic categories2010/04/271
Quivers, curves, and the tropical vertex2010/04/271
The solution of a type of absolute value equations using two new matrix splitting iterative techniques2022/11/091
Ultra-massive spacetimes2023/01/131
The Bruhat order on classes of isotopic Latin squares2020/09/091
Stein–Weiss inequalities for radial local Morrey spaces2020/07/151
Constructing separable Arnold snakes of Morse polynomials2020/10/141
The obstacle problem for noncoercive elliptic equations with variable growth and $L^1$-data2022/07/111
Stability conditions for reversible and partially integrable systems2021/06/021
The set of numerical semigroups of a given multiplicity and Frobenius number2021/08/181
A class of cosmological models with spatially constant sign-changing curvature2023/03/161
Newton’s method and secant methods: A longstanding relationship from vectors to matrices2011/11/171
Fixed point theorems for 1-set weakly contractive and pseudocontractive operators on an unbounded domain2011/06/161
Abel’s method on summation by parts and well-poised bilateral ${}_5ψ_5$-series identities2009/09/301
Coincidence situations for absolutely summing non-linear mappings2007/06/301
A class of integral domains whose integral closures are small submodules of the quotient field2009/03/311
Complete reducibility of systems of equations with respect to R2007/12/311
Remarks on the Navier–Stokes evolution equations under slip type boundary conditions with linear friction2007/12/311
$τ(p;q)$-summing mappings and the domination theorem2008/06/301
Normal forms for symplectic matrices2014/06/301
Classification of three-dimensional complex $\omega$-Lie algebras2014/06/301
Relations between minimal usco and minimal cusco maps2013/11/271
Transposed Poisson structures on the Lie algebra of upper triangular matrices2024/02/141