Dukes, Mark

• The Electronic Journal of Combinatorics Volume 17 (2010) - Research Papers
  Ascent Sequences and Upper Triangular Matrices Containing Non-Negative Integers
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 18, Issue 1 (2011) - Papers
  Composition Matrices, (2+2)-Free Posets and their Specializations
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 21, Issue 2 (2014) - Papers
  Revstack Sort, Zigzag Patterns, Descent Polynomials of $t$-Revstack Sortable Permutations, and Steingrímsson's Sorting Conjecture
  Abstract  PDF  Source files  Source file graphic 1  Source file graphic 2  Source file graphic 3  Tarball of all source files  Official source
• The Electronic Journal of Combinatorics Volume 23, Issue 1 (2016) - Papers
  Web Matrices: Structural Properties and Generating Combinatorial Identities
  Abstract  PDF  Source files  Official Source
• The Electronic Journal of Combinatorics Volume 26, Issue 3 (2019) - Papers
  Permutation Graphs and the Abelian Sandpile Model, Tiered Trees and Non-Ambiguous Binary Trees
  Abstract  PDF