Free iterative and iteration K-semialgebras [article]

Zoltan Esik, Werner Kuich
2011 arXiv   pre-print
We consider algebras of rational power series over an alphabet Σ with coefficients in a commutative semiring K and characterize them as the free algebras in various classes of algebraic structures.
arXiv:1008.1507v2 fatcat:tkeubk5iqna2fno5io2a7ly5l4