S. Ivanov

activity

20072024

most citedConjugation-invariant norms on groups of geometric origin

29 citations · 187 across the 52 of their papers we have counts for

collaborators

Showing 2015 · math.ATShow all

2 papers · 2 filters

math.AT2015★ 5 cited

On nontriviality of homotopy groups of spheres

Sergei O. Ivanov, Roman Mikhailov, Jie Wu

For $n \geq 2$ , the homotopy groups $π_{n} (S^{2})$ are non-zero.

math.AT2015

Leibniz rule on higher pages of unstable spectral sequences

Sergei O. Ivanov, Roman Mikhailov, Jie Wu

A natural composition $⊙$ on all pages of the lower central series spectral sequence for spheres is defined. Moreover, it is defined for $p$ -lower central series spectral seque…