Volume 83, No. 3/4 (2026)
Portugaliae Mathematica
S2O
Articles of this issue are accessible as open access under our subscribe to open model.
pp. 187–205 Rates of (-)asymptotic regularity of the generalized Krasnoselskii–Mann-type iterationPaulo FirminoLaurenţiu Leuştean
pp. 207–221 On an asymptotic property of Toeplitz operatorsHoucine SadraouiFethi Bouzeffour
pp. 223–234 On the difference between squares and integral -unitsYann Bugeaud
pp. 235–259 Normalized solutions of fractional mass supercritical NLS systems with linear couplingsZhenyu GuoFengyi Liang
pp. 261–318 Sigma-convergence for thin heterogeneous domains and application to the upscaling of Darcy–Lapwood–Brinkmann flowWilli JägerJean Louis Woukeng
pp. 319–333 Evaluating a permutation of the power and complement operations of a graph with respect to its independence numbersMargarida CletoRosário FernandesRúben Palma
pp. 335–365 Decay of correlations via induced weak Gibbs–Markov maps for non-Hölder observablesAsad UllahHelder Vilarinho
pp. 367–383 Li–Yorke and distributional chaos for weighted shifts on directed treesChol San KimHyon Hui JuJun Hyok ChoeJin Myong Kim