1. Curvature properties of Robinson–Trautman metric

   • Absos Ali Shaikh
   • Musavvir Ali
   • Zafar Ahsan

   OriginalPaper 05 July 2018 Article: 38

2. Invariant and anti-invariant submanifolds of special quasi-sasakian manifolds

   • Shyamal Kumar Hui
   • Joydeb Roy

   OriginalPaper 29 June 2018 Article: 37

3. Two neighborly families of 3-pyramids and of 3-boxes in \(E^{3}\)

   • Joseph Zaks

   OriginalPaper 16 June 2018 Article: 36

4. Timelike surfaces in Minkowski space with a canonical null direction

   • Victor H. Patty-Yujra
   • Gabriel Ruiz-Hernández

   OriginalPaper 30 May 2018 Article: 35

5. An inequality for contact CR-submanifolds in Sasakian space forms

   • Ion Mihai
   • Ileana Presură

   OriginalPaper 25 May 2018 Article: 34

6. Gradient Ricci solitons with a conformal vector field

   • Ramesh Sharma

   OriginalPaper 21 May 2018 Article: 33

7. Putting convex d-polytopes inside frames

   • Joseph Zaks

   OriginalPaper 15 May 2018 Article: 32

8. Duals of timelike Sabban curves in de Sitter n-space

   • Shyuichi Izumiya
   • Yongqiao Wang

   OriginalPaper 11 May 2018 Article: 31

9. A study of Wintgen like inequality for submanifolds in statistical warped product manifolds

   • Cengizhan Murathan
   • Bayram Şahin

   OriginalPaper 05 May 2018 Article: 30

10. On the constructibility of the axes of an ellipsoid: the construction of Chasles in practice

    • Ákos G. Horváth
    • István Prok

    OriginalPaper 30 April 2018 Article: 29

11. Paradoxical sets and sets with two removable points

    • Jan Mycielski
    • Grzegorz Tomkowicz

    OriginalPaper 20 April 2018 Article: 28

12. Null-\(\mathbf{2}\) type \({\varvec{\delta ({r})}}\)-ideal hypersurfaces in Euclidean space

    • Deepika

    OriginalPaper 19 April 2018 Article: 27

13. On standard two-intersection sets in PG(r, q)

    • Fulvio Zuanni

    OriginalPaper 10 April 2018 Article: 26