29 citations · 187 across the 52 of their papers we have counts for
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math.GR2015
Higher limits, homology theories and fr-codes
Sergei O. Ivanov, Roman Mikhailov
This text is based on lectures given by authors in summer 2015. It contains an introduction to the theory of limits over the category of presentations, with examples of different w…
math.GR2015
Homotopy theory and generalized dimension subgroups
Sergei O. Ivanov, Roman Mikhailov, Jie Wu
Let be a group and its normal subgroups. There is a natural extension of the concept of commutator subgroup for the case of three subgroups as well as the n…
math.GR2015
On commutator length in free groups
Laurent Bartholdi, Danil Fialkovski, Sergei O. Ivanov
Let be a free group. We present for arbitrary a LogSpace (and thus polynomial time) algorithm that determines whether a given is a product of at most…