Tag: natural group

As the new semester starts, I had to wrap up updating the revision of “graphs, groups and geometry”. I worked frantically the last few days on this as it is important to have the correction up also on the ArXiv. There was not only unexpected progress in the case of …

Jakub Gismatullin informed me about an issue with the definition of natural groups, I gave here in 2022. It is easy to fix in that we only need one sided invariance assumption (something I seem to have assumed throughout the paper). In the definition however, I assumed that bi-invariance and …