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Sebastian

Apparently, this user prefers to keep an air of mystery about them.

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  • Berlin, Germany
  • mathcommons.net
  • Member for 9 years, 8 months
  • 598 profile views
  • Last seen Feb 19 '19 at 9:37

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Top posts (16)

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14 Translation length functions of non-simplicial trees Oct 15 '13
10 Invariant free factor of a free group Nov 26 '12
8 Minimal number of generators of subgroups of Noetherian groups Nov 3 '13
8 Normal Subgroups of Free Products Nov 28 '12
7 General properties of free-by-cyclic groups Nov 14 '12
6 Classification of geometric outer automorphisms of free groups Apr 9 '13
4 Periodic automorphisms of free groups and surface homeomorphisms May 6 '13
4 When is Hom(G,H) cyclic? Feb 25 '12
3 Poset fiber theorems under a special assumption on the poset map?! Feb 18 '11
3 Group actions on trees and translates under hyperbolic elements Aug 7 '13
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