Maximum directed cuts in acyclic digraphs

نویسندگان

  • Noga Alon
  • Béla Bollobás
  • András Gyárfás
  • Jenö Lehel
  • Alex D. Scott
چکیده

It is easily shown that every digraph with m edges has a directed cut of size at least m/4, and that 1/4 cannot be replaced by any larger constant. We investigate the size of a largest directed cut in acyclic digraphs, and prove a number of related results concerning cuts in digraphs and acyclic digraphs.

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عنوان ژورنال:
  • Journal of Graph Theory

دوره 55  شماره 

صفحات  -

تاریخ انتشار 2007