On the Hamiltonicity of triple systems with high minimum degree
  We show that every 3-uniform hypergraph with minimum vertex degree at least $0.8\binom{n-1}{2}$ contains a tight Hamiltonian cycle. 
Vojt\v{e}ch R\"odl, Andrzej Ruci\'nski, Mathias Schacht, Endre   Szemer\'edi
math.CO