Title of article
Directed packing and covering designs with block size four Original Research Article
Author/Authors
Ahmed M. Assaf، نويسنده , , Nabil Shalaby، نويسنده , , Jianxing Yin، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
15
From page
3
To page
17
Abstract
In this paper we improve and generalize the results of two earlier papers of Skillicorn. The maximum (minimum) number of blocks in a directed (v,4,λ) packing (covering) designs are completely determined.
Keywords
Directed , Minimum covering , Maximum packing
Journal title
Discrete Mathematics
Serial Year
2001
Journal title
Discrete Mathematics
Record number
949764
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