Volume 83, No. 1/2 (2026)
Portugaliae Mathematica
S2O
Articles of this issue are accessible as open access under our subscribe to open model.

pp. 1–18 Lefschetz properties and the Jacobian algebra of -dimensional hyperplane arrangementsSimone MarchesiElisa PalezzatoMichele Torielli
pp. 19–34 Not too little intervals for quantum mechanicsDamien Calaque
pp. 35–105 On Hecke and asymptotic categories for a family of complex reflection groupsAbel LacabanneDaniel TubbenhauerPedro Vaz
pp. 107–112 A note on traces of operators onMarian Nowak
pp. 113–144 Zero mean curvature surfaces in isotropic space with planar curvature linesJoseph ChoMasaya Hara
pp. 145–165 Maximal number of skew lines on Fermat surfacesSally AndriaJacqueline RojasWállace Mangueira
pp. 167–185 Height functions on a cuspidal edge with a distinguished singular curveFawaz AlharbiRaúl Oset Sinha