1. Goursat Flags: Classification of Codimension-One Singularities

   • Piotr Mormul

   OriginalPaper Pages: 311 - 330

2. A New Solution of One Birkhoff Problem

   • S. A. Shapovalov

   OriginalPaper Pages: 331 - 339

3. Mather Invariants and Smooth Conjugacy on \(\mathbb{S}^2 \)

   • V. S. Afraimovich
   • T. Young

   OriginalPaper Pages: 341 - 352

4. On the Controllability Problem Arising in Financial Mathematics

   • P. O. Shorygin

   OriginalPaper Pages: 353 - 363

5. On Sub-Riemannian Caustics and Wave Fronts for Contact Distributions in the Three-Space

   • A. A. Agrachev
   • G. Charlot
   • V. M. Zakalyukin

   OriginalPaper Pages: 365 - 395

6. Complete Combinatorial Invariants for Conjugacy of Hyperbolic Attractors of Diffeomorphisms of Surfaces

   • A. Yu. Zhirov

   OriginalPaper Pages: 397 - 430

7. Remarks on Periodic Solutions of Ordinary Differential Equations

   • V. V. Filippov

   Commentary Pages: 431 - 451

8. Controllability of Solvable Lie Algebras

   • Dirk Mittenhuber

   OriginalPaper Pages: 453 - 459