منابع مشابه
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A set is called recurrent if its minimal automaton is strongly connected and birecurrent if additionally the same holds for the minimal automaton of its reversal. We study recurrent and birecurrent sets. Our main results are a new proof of an old result (the well-known theorem of Schützenberger concerning codes with bounded synchronization delay) and a series of new results concerning birecurre...
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Let G be a group of order v. A k-element subset D of G is called a (v,k,λ )difference set in G if for any nonidentity element g ∈ G, there are λ pairs of elements d1,d2 ∈ D such that d1d 2 = g. It is well-known that difference sets can be used to construct sequences used in digital communication. This paper is a survey on the recent developments of using difference sets and their variations to ...
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ژورنال
عنوان ژورنال: Topology and its Applications
سال: 1999
ISSN: 0166-8641
DOI: 10.1016/s0166-8641(98)00108-4