1. On the existence of semifields of prime power order admitting free automorphism groups

   • Mashhour Al-Ali Bani-Ata
   • Christoph Hering
   • Aymen Rawashdeh

   OriginalPaper Pages: 1 - 5

2. Tubes in three–dimensional projective spaces

   • Edoardo Ballico
   • Antonio Cossidente

   OriginalPaper Pages: 6 - 10

3. Möbius-Kantor configurations in the affine plane of order 7

   • Luigia Berardi
   • Tiziana Masini

   OriginalPaper Pages: 11 - 20

4. Manifolds with commuting Jacobi operators

   • Miguel Brozos-Vázquez
   • Peter Gilkey

   OriginalPaper Pages: 21 - 30

5. The product of the distances of a point inside a regular polytope to its vertices

   • Gulbank D. Chakerian
   • Murray S. Klamkin

   OriginalPaper Pages: 31 - 41

6. Eta-Einstein condition on twistor spaces of odd-dimensional Riemannian manifolds

   • Johann Davidov

   OriginalPaper Pages: 42 - 53

7. Algebraic varieties over skew grids with applications to multivariate interpolation

   • Wendelin L. F. Degen

   OriginalPaper Pages: 54 - 72

8. Null 2-type submanifolds of the Euclidean space E⁵ with non-parallel mean curvature vector

   • Uğur Dursun

   OriginalPaper Pages: 73 - 80

9. Vectorspacelike representation of absolute planes

   • Helmut Karzel
   • Mario Marchi

   OriginalPaper Pages: 81 - 97

10. The correlations of finite Desarguesian planes, Part IV: The classification (III)

    • Barbu C. Kestenband

    OriginalPaper Pages: 98 - 139

11. Polar duality and the generalized Law of Sines

    • Simon L. Kokkendorff

    OriginalPaper Pages: 140 - 149

12. Harmonische Involutionen und Kreisspiegelungen in Möbiusebenen

    • Helmut Mäurer

    OriginalPaper Pages: 150 - 153

13. How many s-subspaces must miss a point set in PG(d, q)

    • Klaus Metsch

    OriginalPaper Pages: 154 - 164

14. Spreads of nonsingular pairs in symplectic vector spaces

    • Steven H. Weintraub

    OriginalPaper Pages: 165 - 180

15. Third Symposium on Geometry

    OriginalPaper Pages: 181 - 198