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Languages with homomorphic replacements. (English) Zbl 0468.68085


MSC:

68Q45 Formal languages and automata
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References:

[1] Asveld, P. R.J.; Engelfriet, J., Iterated deterministic substitution, Acta Informat., 8, 3, 285-302 (1977) · Zbl 0343.68034
[2] Dembinski, P.; Maluszynski, J., Two level grammars: CF-grammars with equation schemes, (Proc. 6th ICALP Graz. Proc. 6th ICALP Graz, Lecture Notes in Computer Science, 71 (1979), Springer: Springer Berlin), 171-187 · Zbl 0459.68048
[3] Ehrenfeucht, A.; Rozenberg, G.; Skyum, S., A relationship between ETOL and EDTOL languages, Theoret. Comput. Sci., 1, 325-330 (1976) · Zbl 0339.68055
[4] Engelfriet, J.; Schmidt, E. M., IO and OI, J. Comput. System Sci., 15, 328-353 (1977) · Zbl 0366.68053
[5] Engelfriet, J.; Skyum, S., Copying theorems, Information Processing Lett., 4, 5, 157-161 (1976) · Zbl 0323.68051
[6] Greibach, S., Some restrictions on \(W\)-grammars, Internat. J. Comput. Information Sci., 3, 4, 289-327 (1974) · Zbl 0288.68035
[7] van Leeuwen, J., \(F\)-iteration languages (1973), University of California: University of California Berkeley, Memorandum
[8] Dokl. Akad. Nauk SSSR, Soviet Math. Dokl., 18, 2, 330-334 (1977) · Zbl 0379.20046
[9] Salomaa, A., Formal Languages (1973), Academic Press: Academic Press New York · Zbl 0262.68025
[10] Salomaa, A., Macros, iterated substitution and Lindenmayer-AFL’s (1973), University of Aarhus: University of Aarhus Denmark, DAIMI PB-18
[11] Skyum, S., Decomposition theorems for various kinds of languages parallel in nature, SIAM J. Comput., 5, 2, 284-296 (1976) · Zbl 0332.68058
[12] Wand, M., Mathematical foundations of formal language theory (1973), Mass. Institute of Technology, Report MAC TR-108
[13] Wegner, L., Analysis of two-level grammars, (Ph.D. Thesis (1977), Hochschulverlag: Hochschulverlag Stuttgart)
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