26 citations · 69 across the 24 of their papers we have counts for
4 papers · 1 filter
Mild Pro- Groups and Ordered Monoids
Ido Efrat
We prove a criterion for the mildness of a finitely presented pro- group . It implies as a special case a cohomological mildness criterion via Massey products, generalizing r…
Filtrations of free groups arising from the lower central series
Michael Chapman, Ido Efrat
We make a systematic study of filtrations of a free group F defined as products of powers of the lower central series of F. Under some assumptions on the exponents, we characterize…
Filtrations of free groups as intersections
Ido Efrat
For several natural filtrations of a free group S we express the n-th term of the filtration as the intersection of all kernels of homomorphisms from S to certain groups of upper-t…
Quotients of absolute Galois groups which determine the entire Galois cohomology
Sunil K. Chebolu, Ido Efrat, Ján Mináč
For prime power and a field containing a root of unity of order we show that the Galois cohomology ring $H^*(G_F,\dbZ/q)$ is determined by a quotient of…