1. Voronovskaya-Type Estimates for Mellin Convolution Operators

   • Carlo Bardaro
   • Ilaria Mantellini

   OriginalPaper 26 March 2007 Pages: 1 - 16

2. Closed Hypersurfaces of \(\mathbb{S}^4\) with Two Constant Curvature Functions

   • Sebastião C. de Almeida
   • Fabiano G. B. Brito
   • Luiz Amancio M. de Sousa Jr.

   OriginalPaper 26 March 2007 Pages: 17 - 26

3. Decomposition Methods in Banach Spaces via Supplemented Subspaces Resembling Pełczyński’s Decomposition Methods

   • Elói Medina Galego

   OriginalPaper 05 April 2007 Pages: 27 - 41

4. A Special Trefoil Knot Has Two or More Vertices

   • Ronaldo Garcia

   OriginalPaper 05 April 2007 Pages: 43 - 51

5. Duals of Vector Fields and of Null Curves

   • Hubert Gollek

   OriginalPaper 05 April 2007 Pages: 53 - 79

6. Properties of Auto- and Antiautomorphisms of Maximal Chain Structures and their Relations to i-Perspectivities

   • Helmut Karzel
   • Jarosław Kosiorek
   • Andrzej Matraś

   OriginalPaper 26 March 2007 Pages: 81 - 92

7. Geometric Implications of the Poincaré Inequality

   • Riikka Korte

   OriginalPaper 26 March 2007 Pages: 93 - 107

8. Eigenvalue Equations in Curve Theory Part II: Evolutes and Involutes

   • Stephanie Müller
   • Angela Schwenk-Schellschmidt
   • Udo Simon

   OriginalPaper 26 March 2007 Pages: 109 - 124

9. Incidence Left Loops Derived from Kinematic Algebras

   • Anita Pasotti
   • Elena Zizioli

   OriginalPaper 05 April 2007 Pages: 125 - 139

10. On the Values of Heine Series at Algebraic Points

    • Olli Sankilampi
    • Keijo Väänänen

    OriginalPaper 26 March 2007 Pages: 141 - 153

11. Two-Interval Sturm–Liouville Operators in Direct Sum Spaces with Inner Product Multiples

    • Jiong Sun
    • Aiping Wang
    • Anton Zettl

    OriginalPaper 05 April 2007 Pages: 155 - 168