Bitranslations and Symmetric Nets

نویسنده

  • Ahmad N. Al-Kenani
چکیده

It is known that every class-regular symmetric μ,m -net is tactical. Also it is known that all μ,m nets with m 2 or μ 1 are tactical. In the work of Al-Kenani and Mavron 2003 , it is proved that every symmetric net with m 3 is tactical if and only if it is class regular. In this paper, we construct 2, 4 -net and show that it is class regular and therefore tactical. New necessary and sufficient conditions are given for a symmetric net to admit a nonidentity bitranslation.

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تاریخ انتشار 2010