1. Permutation groups arising from pattern involvement

   • Erkko Lehtonen

   OriginalPaper 21 September 2019 Pages: 251 - 298

2. Nilpotent primer hypermaps with hypervertices of valency a prime

   • Shaofei Du
   • Kai Yuan

   OriginalPaper 26 September 2019 Pages: 299 - 316

   

3. Faithful permutation representations of toroidal regular maps

   • Maria Elisa Fernandes
   • Claudio Alexandre Piedade

   OriginalPaper 27 September 2019 Pages: 317 - 337

   

4. Quotients of the Hermitian curve from subgroups of \(\mathrm{PGU}(3,q)\) without fixed points or triangles

   • Maria Montanucci
   • Giovanni Zini

   OriginalPaper 01 October 2019 Pages: 339 - 368

   

5. Signed counts of real simple rational functions

   • Boulos El Hilany
   • Johannes Rau

   OriginalPaper 09 October 2019 Pages: 369 - 403

   

6. Quasi-quantum groups obtained from tensor braided Hopf algebras

   • Daniel Bulacu

   OriginalPaper 14 October 2019 Pages: 405 - 453