共查询到20条相似文献，搜索用时 15 毫秒
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C.K. Chan Xiaojun Chen Liqun QiColin Rogers 《Journal of Computational and Applied Mathematics》2011,235(13):3703-3704
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A.H.G. Rinnooy Kan 《Discrete Applied Mathematics》1985,10(2):115-122
The following morphic characterization of EOL languages is established. The family of EOL languages equals the family of all languages of the form h(L∩R) where h is a morphism, R is a regular language and L is the maximal solution of an equation , where ? is a morphism, g is a coding and X is a language variable. It is shown that if g is allowed to be a weak coding, then a larger family of languages is obtained, which however is strictly contained in the family of ETOL languages. 相似文献
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Sergei Silvestrov Palle Jorgensen Ola Bratteli David Kribs Gestur Olafsson 《Acta Appl Math》2009,108(3):487-488
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