Well primitive digraphs
نویسنده
چکیده
A primitive digraph D is said to be well primitive if the local exponents of D are all equal. In this paper we consider well primitive digraphs of two special types: digraphs that contain loops, and symmetric digraphs with shortest odd cycle of length r. We show that the upper bound of the exponent of the well primitive digraph is n− 1 in both these classes of digraphs, and we characterize the extremal digraphs.
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ورودعنوان ژورنال:
- Australasian J. Combinatorics
دوره 71 شماره
صفحات -
تاریخ انتشار 2018