Makanin, G. S. Das Problem der Lösbarkeit von Gleichungen in einer freien Halbgruppe. (Russian) Zbl 0371.20047 Mat. Sb., N. Ser. 103(145), 147-236 (1977). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 10 ReviewsCited in 51 Documents MSC: 20M05 Free semigroups, generators and relations, word problems 68W99 Algorithms in computer science 03B25 Decidability of theories and sets of sentences PDF BibTeX XML Cite \textit{G. S. Makanin}, Mat. Sb., Nov. Ser. 103(145), 147--236 (1977; Zbl 0371.20047)