The intersection problem for 2-(v,5,1) directed block designs |
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| Authors: | Nasrin Soltankhah Somaye Ahmadi |
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| Affiliation: | Department of Mathematics, Alzahra University, Vanak Square 19834, Tehran, Islamic Republic of Iran |
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| Abstract: | The intersection problem for a pair of 2- directed designs and 2- directed designs is solved by Fu in 1983 and by Mahmoodian and Soltankhah in 1996, respectively. In this paper we determine the intersection problem for 2- directed designs. |
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