2 citations · 10 across the 21 of their papers we have counts for
Showing 2008 · math.RAShow all
3 papers · 2 filters
math.RA2008★ 1 cited
Multi-Hypersubstitutions and Colored Solid Varieties
Klaus Denecke, Jorg Koppitz, Slavcho Shtrakov
Hypersubstitutions are mappings which map operation symbols to terms. Terms can be visualized by trees. Hypersubstitutions can be extended to mappings defined on sets of trees. The…
math.RA2008
The Depth of a Hypersubstitution
Klaus Denecke, Jorg Koppitz, Slavcho Shtrakov
For given depth of a we derive a formula for the depth of the image of that term under a given hypersubstitution.
math.RA2008
On mappings of terms determined by hypersubstitutions
Jorg Koppitz, Slavcho Shtrakov
The extensions of hypersubstitutions are mappings on the set of all terms. In the present paper we characterize all hypersubstitutions which provide bijections on the set of all te…