See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/254208031 Rings of constants for $k$-derivations in $k[x_1, \ldots, x_n]$ Article in Kyoto Journal of Mathematics · January 1988 CITATIONS 0 READS 10 2 authors, including: Andrzej Nowicki Nicolaus Copernicus University 110 PUBLICATIONS 826 CITATIONS SEE PROFILE All content following this page was uploaded by Andrzej Nowicki on 30 September 2014. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately.