Volume 2011 [5 articles]

• Identities of symmetry for generalized Euler polynomials, Dae San Kim
  Volume 2011 (2011), Article ID 432738, 12 pages
• Application of the firefly algorithm for solving the economic emissions load dispatch problem, Theofanis Apostolopoulos, Aristidis Vlachos
  Volume 2011 (2011), Article ID 523806, 23 pages
• Zeons, permanents, the Johnson scheme, and generalized derangements, Philip Feinsilver, John Mcsorley
  Volume 2011 (2011), Article ID 539030, 29 pages
• On the isolated vertices and connectivity in random intersection graphs, Yilun Shang
  Volume 2011 (2011), Article ID 872703, 9 pages
• Classification of normal sequences, Dragomir Ž. {\Dj}oković
  Volume 2011 (2011), Article ID 937941, 15 pages