Skew Poincaré–Birkhoff–Witt extensions over weak zip rings Armando ReyesHéctor Suárez Original Paper 23 July 2018 Pages: 197 - 216
Centrally-extended generalized *-derivations on rings with involution Susan F. El-DekenH. Nabiel Original Paper 31 July 2018 Pages: 217 - 224
A homological dimension related to AB rings Tokuji Araya Original Paper 11 August 2018 Pages: 225 - 231
Multi-Gieseker semistability and moduli of quiver sheaves Marcel MaslovarićHenrik Seppänen Original Paper 07 September 2018 Pages: 257 - 332
Parallelisms of \(\mathrm{PG}(3,\mathbb R)\) admitting a 3-dimensional group Rainer Löwen Original Paper 15 September 2018 Pages: 333 - 337
Linear Weingarten submanifolds in the hyperbolic space Henrique F. de LimaJogli G. Araújo Original Paper 27 September 2018 Pages: 339 - 349
Central quadrics in Euclidean n-space - metric and focal properties Ákos G. Horváth Original Paper 26 July 2018 Pages: 351 - 378
Euler’s ratio-sum formula in projective-metric spaces Árpád KurusaJózsef Kozma Original Paper 12 October 2018 Pages: 379 - 390