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@inproceedings{332831, author = {Klíma, Ondřej}, address = {Klagenfurt}, booktitle = {Proceedings of 58th Workshop on General Algebra "58. Arbeitstagung Allgemeine Algebra"}, language = {eng}, location = {Klagenfurt}, isbn = {3-85366-951-4}, pages = {237-246}, publisher = {Verlag Johannes Heyn}, title = {On the solvability of equations in semigroups with $x^r=x$}, year = {2000} }
TY - JOUR ID - 332831 AU - Klíma, Ondřej PY - 2000 TI - On the solvability of equations in semigroups with $x^r=x$ VL - Contributions to General Algebra 12 PB - Verlag Johannes Heyn CY - Klagenfurt SN - 3853669514 N2 - The word problem for the free semigroups satisfying the identity $x^r=x$ was reduced to the word problem for the free groups satisfying the identity $x^{r-1}=1$ by Kaďourek and Polák in 1990. We use their result to solve the equations with constants in the free semigroups in the varieties $\Sr$. In fact, we transform the problem of solvability of a single equation in $\Sr$ into the problem of solvability of disjunction of equations with constants in $\Gr$. This is shown in detail for equations with two and three constants. ER -
KLÍMA, Ondřej. On the solvability of equations in semigroups with \${}x\^{}r=x\${}. In \textit{Proceedings of 58th Workshop on General Algebra ''58. Arbeitstagung Allgemeine Algebra''}. Klagenfurt: Verlag Johannes Heyn, 2000, p.~237-246. Contributions to General Algebra 12. ISBN~3-85366-951-4.
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