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Nick Ulyanov

Interested in:

  • cycle double cover conjecture (also including [oriented] Berge–Fulkerson conjecture, 5–flow conjecture, (m,n)–cycle covers, Bouchet’s 6–flow conjecture, unit vector flows conjectures, three 4–flows conjecture and variations, Petersen colouring conjecture, modified 2 bipartizing matchings conjecture)
  • graceful labeling (conjecture) (including harmonious labeling (conjecture), sequential labeling (conjecture), edge–graceful labeling (conjecture))
  • Graham–Häggkvist conjecture (including directed graph variation (with anti–directed trees))