1. Polyhedral Gauss–Bonnet theorems and valuations

   • Rolf Schneider

   Original Paper 24 October 2017 Pages: 199 - 210

2. The ratios of diameter and width of reduced and of complete convex bodies in Minkowski spaces

   • Christian Richter

   Original Paper 10 November 2017 Pages: 211 - 220

   

3. A theory of duality in Euclidean geometry

   • Rolf Struve

   Original Paper 28 November 2017 Pages: 221 - 246

4. A generalization of the concept of distance based on the simplex inequality

   • Gergely Kiss
   • Jean-Luc Marichal
   • Bruno Teheux

   Original Paper 25 January 2018 Pages: 247 - 266

5. General position of points on a rational ruled surface

   • Alberto Alzati
   • Alfonso Tortora

   Original Paper 12 October 2017 Pages: 267 - 287

6. Some results on almost Ricci solitons and geodesic vector fields

   • Ramesh Sharma

   Original Paper 03 November 2017 Pages: 289 - 294

7. Homogeneous quasi-translations in dimension 5

   • Michiel de Bondt

   Original Paper Open access 13 October 2017 Pages: 295 - 326

   

8. Irreducibility of the Cayley–Menger determinant and of a class of related polynomials

   • Mowaffaq Hajja
   • Mostafa Hayajneh
   • Shadi Shaqaqha

   Original Paper 04 November 2017 Pages: 327 - 342

9. A correspondence of good G-sets under partial geometric quotients

   • Johannes Schmitt

   Original Paper 14 October 2017 Pages: 343 - 360

   

10. On base radical and semisimple operators for a class of finite algebras

    • L. K. Thornton

    Original Paper 06 December 2017 Pages: 361 - 374

    

11. Notes on reduced Rickart rings, I

    • Jānis Cīrulis
    • Insa Cremer

    Original Paper 07 December 2017 Pages: 375 - 389

12. Rings in which every 2-absorbing ideal is prime

    • Driss Bennis
    • Brahim Fahid

    Original Paper 02 November 2017 Pages: 391 - 396