1. Eine Bemerkung zum Satz von Ivory

   • Gudrun Albrecht

   OriginalPaper Pages: 1 - 10

2. Shapes of polygons

   • Rafael Artzy

   OriginalPaper Pages: 11 - 15

3. Weak stability of almost regular contact foliations

   • Augustin Banyaga
   • Philippe Rukimbira

   OriginalPaper Pages: 16 - 27

4. A krasnosel'skii-type theorem in the plane involving polygonal n-paths

   • Jaroslaw Cel

   OriginalPaper Pages: 28 - 29

5. Separation of two convex sets in convexity structures

   • Victor Chepoi

   OriginalPaper Pages: 30 - 51

6. On weighted arcs with three non-zero characters

   • Erminia D'Agostini

   OriginalPaper Pages: 52 - 62

7. How the elliptic integrals K and E arise from circles and points in the Minkowski plane

   • Mostafa Ghandehari
   • Dave Logothetti

   OriginalPaper Pages: 63 - 72

8. On point-irreducible projective lattice geometries

   • Marcus Greferath
   • Stefan E. Schmidt

   OriginalPaper Pages: 73 - 83

9. A classification of ruled surfaces of finite type in S³

   • Thomas Hasanis
   • Theodoras Vlachos

   OriginalPaper Pages: 84 - 94

10. Räumliche Deutung von Bahnen ebener Bewegungen

    • Walther Jank

    OriginalPaper Pages: 95 - 99

11. On face-vectors of 5-valent convex 3-polytopes

    • Stanislav Jendrol'

    OriginalPaper Pages: 100 - 110

12. Pointed helical submanifolds of euclidean space

    • Young Ho Kim

    OriginalPaper Pages: 111 - 117

13. Pencils of circles of equal potentials

    • David Kirby
    • Frank Rhodes

    OriginalPaper Pages: 118 - 123

14. Ein Axiomensystem für partielle affine Räume

    • Stephan Meuren
    • Armin Herzer

    OriginalPaper Pages: 124 - 142

15. Classification of ovoids inPG(3, 32)

    • Christine M. O'Keefe
    • Tim Penttila
    • Gordon F. Royle

    OriginalPaper Pages: 143 - 150

16. Classification of hyperovals inPG(2,32)

    • Tim Penttila
    • Gordon F. Royle

    OriginalPaper Pages: 151 - 158

17. Das System Totalpolarer und eine Kennzeichnung des Winkels von Hyperebenen in Cayley/Klein-Räumen

    • Hermann Vogel

    OriginalPaper Pages: 159 - 177

18. Kurventheorie im konform isotropen RaumC ₃ ⁽¹⁾

    • Walter O. Vogel

    OriginalPaper Pages: 178 - 185

19. A cyclographic approach to the vertices of plane curves

    • Bernd Wegner

    OriginalPaper Pages: 186 - 201