Baayen, P. C.; Hedrlin, Z. On the product and sum of a system of transformation semigroups. (English) Zbl 0116.25601 Commentat. Math. Univ. Carol. 4, 29-42 (1963). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:group theory PDF BibTeX XML Cite \textit{P. C. Baayen} and \textit{Z. Hedrlin}, Commentat. Math. Univ. Carol. 4, 29--42 (1963; Zbl 0116.25601) Full Text: EuDML OpenURL