The Restricted Word Shadow Problem
نویسندگان
چکیده
Recently we introduced and studied the shadow minimization problem under word-subword relation. In this paper we consider this problem for the restricted case and give optimal solution.
منابع مشابه
Shadows under the word-subword relation
Quite surprisingly, it seems that the minimal shadow problem for the word-subword relation introduced here has not been studied before, whereas its analogs for sets [1–4], sequences [5], and vector spaces over finite fields [6] are well known. For an alphabet X = {0, 1, . . . , q − 1}, we consider the set X k of words xk = x1x2 . . . xk of length k. For a word ak = a1a2 . . . ak ∈ X k, we defin...
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