Birhanu, Gebrehanna
(2014)
*R-Bell Numbers for Graphs.*
Masters thesis, Addis Ababa University.

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## Abstract

The r-Bell number B^r(G) of a simple labeled graph G is the number of partitions of its vertex set whose blocks are independent sets of G where the first r-vertices are in different blocks. The number of these partitions with k blocks is the (graphical) r- Stirling number S^r(G; k) of G. On this particular paper we will investigate the integer sequence of r-Bell numbers for different kinds of graphs.

Item Type: | Thesis (Masters) |
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Subjects: | Q Science > Q Science (General) Q Science > QA Mathematics |

Divisions: | Africana |

Depositing User: | Selom Ghislain |

Date Deposited: | 19 Sep 2018 12:49 |

Last Modified: | 19 Sep 2018 12:49 |

URI: | http://thesisbank.jhia.ac.ke/id/eprint/5444 |

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