1. A class of sums of squares with a given Poisson-Treves stratification

   • Antonio Bove
   • David Tartakoff

   OriginalPaper Pages: 391 - 420

2. On the structure of finite perimeter sets in step 2 Carnot groups

   • Bruno Franchi
   • Raul Serapioni
   • Francesco Serra Cassano

   OriginalPaper Pages: 421 - 466

3. Functional Gabor frame multipliers

   • Qing Gu
   • Deguang Han

   OriginalPaper Pages: 467 - 478

4. Density of weighted wavelet frames

   • Christopher Heil
   • Gitta Kutyniok

   OriginalPaper Pages: 479 - 493

5. A multidirectional Dirichlet problem

   • Gregory C. Verchota
   • Andrew L. Vogel

   OriginalPaper Pages: 495 - 520

6. On the constructibility of a negatively curved complete surface of constant mean curvature in H³ determined by a prescribed Hopf differential

   • Takayuki Yamauchi

   OriginalPaper Pages: 521 - 555