no-homomorphism conditions for hypergraphs

نویسندگان

  • Sadegh Rahimi Sharbaf Faculty of Mathematical Sciences Shahrood university of Technology, Shahrood, Shahrood, Iran.
  • Samaneh Tahmasebi Faculty of Mathematical Sciences Shahrood university of Technology, Shahrood, Shahrood, Iran.
چکیده مقاله:

In this paper, we define some new homomorphism-monotone parameters for hypergraphs. Using these parameters, we extend some graph homomorphism results to hypergraph case. Also, we present some bounds for some well-known invariants of hypergraphs such as fractional chromatic number,independent numer and some other invariants of hyergraphs, in terms of these parameters.

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عنوان ژورنال

دوره 5  شماره 2

صفحات  45- 53

تاریخ انتشار 2018-10-01

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