On factors of a decreasing central series
Let \(S\) be the free group with \(d\) free generators, \(p\) is a prime number, \(N_ c\) is the descending \(p\)-central series defined by induction: \(N_ 1=S\) and \(N_{c+1}=(N_ c,S)N_ c^ p\). In this paper a complete description of the factors \(N_ c/N_{c+1}\) of the descending \(p\)-series with \(p=2\) is given. In the case of \(p\neq 2\) a similar description has been found by the author earlier.
scientific article; zbMATH DE number 4114880