1. Words and Polynomial Invariants of Finite Groups in Non-Commutative Variables

   • Anouk Bergeron-Brlek
   • Christophe Hohlweg
   • Mike Zabrocki

   OriginalPaper 17 December 2011 Pages: 1 - 36

2. Four-Cycled Graphs with Topological Applications

   • Türker Bıyıkoğlu
   • Yusuf Civan

   OriginalPaper 15 December 2011 Pages: 37 - 56

3. Polyominoes Determined by Permutations: Enumeration via Bijections

   • Filippo Disanto
   • Enrica Duchi
   • Simone Rinaldi

   OriginalPaper 22 December 2011 Pages: 57 - 75

4. A New Recursion in the Theory of Macdonald Polynomials

   • A. M. Garsia
   • J. Haglund

   OriginalPaper 17 December 2011 Pages: 77 - 106

5. An Erdős-Gallai Theorem for Matroids

   • Sean McGuinness

   OriginalPaper 16 December 2011 Pages: 107 - 119

6. The Inverse Conjecture for the Gowers Norm over Finite Fields in Low Characteristic

   • Terence Tao
   • Tamar Ziegler

   OriginalPaper 24 December 2011 Pages: 121 - 188