1. \({\mathcal{PT}}\) -Symmetric Waveguides and the Lack of Variational Techniques

   • David Krejčiřík

   Open Problems 29 November 2011 Pages: 1 - 2

2. Uniform Time-Decay of Semigroups of Contractions

   • Xue Ping Wang

   Open Problems 03 December 2011 Pages: 3 - 4

3. \({\mathcal{PT}}\) -Symmetric Laplace–Beltrami Operator in the Strip on a Sphere

   • Petr Siegl

   Open Problems 01 December 2011 Pages: 5 - 6

4. Linear Maps Preserving Operators of Local Spectral Radius Zero

   • Constantin Costara

   OriginalPaper 02 March 2012 Pages: 7 - 16

5. Shape Derivatives of Boundary Integral Operators in Electromagnetic Scattering. Part II: Application to Scattering by a Homogeneous Dielectric Obstacle

   • Martin Costabel
   • Frédérique Le Louër

   OriginalPaper 01 March 2012 Pages: 17 - 48

6. Essential Normality of Operators Close to Isometries

   • Sameer Chavan

   OriginalPaper 04 March 2012 Pages: 49 - 55

7. Compact Differences of Composition Operators over Polydisks

   • Boo Rim Choe
   • Hyungwoon Koo
   • Inyoung Park

   OriginalPaper 27 March 2012 Pages: 57 - 91

8. On Semi-weakly n-Hyponormal Weighted Shifts

   • Younghae Do
   • George Exner
   • Chunji Li

   OriginalPaper 29 March 2012 Pages: 93 - 106

9. Fine Structure of the Dichotomy Spectrum

   • Christian Pötzsche

   OriginalPaper 07 March 2012 Pages: 107 - 151