appall
发表于 2025-3-28 18:30:19
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Ringworm
发表于 2025-3-28 19:39:35
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Reservation
发表于 2025-3-28 23:32:58
Complexity of Two-Dimensional Rank-Reducing Grammars,o-dimensional context-free grammar by restricting the form of productions. Variants (ranks) of the grammar with regard to productions complexity are defined. It is suggested that the lowest-rank variant can be considered as a natural generalization of the regular matrix grammar, which in addition ha
骑师
发表于 2025-3-29 05:29:26
Palindromic Length of Words with Many Periodic Palindromes,ni conjectured that: If . is an infinite word and . is an integer such that . for every factor . of . then . is ultimately periodic..Suppose that . is an infinite word and . is an integer such . for every factor . of .. Let . be the set of all factors . of . that have more than . palindromic prefixe
慢慢冲刷
发表于 2025-3-29 10:12:05
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面包屑
发表于 2025-3-29 12:54:19
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GRIN
发表于 2025-3-29 17:44:21
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novelty
发表于 2025-3-29 21:16:39
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hypnogram
发表于 2025-3-30 01:00:45
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起波澜
发表于 2025-3-30 05:41:43
Insertion-Deletion with Substitutions II,We discuss substitutions as a further type of operations, added to (in particular, one-sided) insertion-deletion systems. This way, we obtain new characterizations of classes of context-sensitive and recursively enumerable languages. Moreover, we obtain new families of languages containing all regular or contained in the context-free languages.