New methods to attack the Buratti-Horak-Rosa conjecture

M. A. Ollis, Anita Pasotti*, Marco Antonio Pellegrini, John R. Schmitt

*Autore corrispondente per questo lavoro

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review


The conjecture, still widely open, posed by Marco Buratti, Peter Horak and Alex Rosa states that a list L of v−1 positive integers not exceeding ⌊[Formula Presented]⌋ is the list of edge-lengths of a suitable Hamiltonian path of the complete graph with vertex-set {0,1,…,v−1} if and only if, for every divisor d of v, the number of multiples of d appearing in L is at most v−d. In this paper we present new methods that are based on linear realizations and can be applied to prove the validity of this conjecture for a vast choice of lists. As example of their flexibility, we consider lists whose underlying set is one of the following: {x,y,x+y}, {1,2,3,4}, {1,2,4,…,2x}, {1,2,4,…,2x,2x+1}. We also consider lists with many consecutive elements.
Lingua originaleEnglish
pagine (da-a)N/A-N/A
RivistaDiscrete Mathematics
Stato di pubblicazionePubblicato - 2021


  • Complete graph
  • Edge-length
  • Graceful permutation
  • Hamiltonian path
  • Linear realization


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