1. Real Hypersurfaces with Isometric Reeb Flow in Complex Two-Plane Grassmannians

   • Jürgen Berndt
   • Young Jin Suh

   Pages: 87 - 98

2. Superposition Operators in the Algebra of Functions of Two Variables with Finite Total Variation

   • Vyacheslav V. Chistyakov

   Pages: 99 - 114

3. Transcendence of Certain Reciprocal Sums of Linear Recurrences

   • Daniel Duverney
   • Tomoaki Kanoko
   • Taka-aki Tanaka

   Pages: 115 - 128

4. On Exponential Sums Involving the Ideal Counting Function in Quadratic Number Fields

   • Jun Furuya

   Pages: 129 - 156

5. Commutators in Residually Finite Groups

   • Pavel Shumyatsky

   Pages: 157 - 165

6. Measures on the Product of Compact Spaces

   • Ignacio Villanueva

   Pages: 167 - 172