%0 Journal Article %1 PorterSuciu %A Porter, Richard D. %A Suciu, Alexander I. %D 2020 %J European Journal of Mathematics %K alex arrangements myown %N 3 %P 1039-1072 %R 10.1007/s40879-019-00392-x %T Homology, lower central series, and hyperplane arrangements %V 6 %X We explore finitely generated groups by studying the nilpotent towers and the various Lie algebras attached to such groups. Our main goal is to relate an isomorphism extension problem in the Postnikov tower to the existence of certain commuting diagrams. This recasts a result of Grigory Rybnikov in a more general framework and leads to an application to hyperplane arrangements, whereby we show that all the nilpotent quotients of a decomposable arrangement group are combinatorially determined.

@article{PorterSuciu, abstract = {We explore finitely generated groups by studying the nilpotent towers and the various Lie algebras attached to such groups. Our main goal is to relate an isomorphism extension problem in the Postnikov tower to the existence of certain commuting diagrams. This recasts a result of Grigory Rybnikov in a more general framework and leads to an application to hyperplane arrangements, whereby we show that all the nilpotent quotients of a decomposable arrangement group are combinatorially determined.}, added-at = {2019-06-13T02:18:04.000+0200}, author = {Porter, Richard D. and Suciu, Alexander I.}, biburl = {https://www.bibsonomy.org/bibtex/29a1126ae24c8c3dbcdeaf2bf71a83a6d/asuciu}, doi = {10.1007/s40879-019-00392-x}, interhash = {c55c6288e2b5aab85ad67737d89ec8a4}, intrahash = {9a1126ae24c8c3dbcdeaf2bf71a83a6d}, journal = {European Journal of Mathematics}, keywords = {alex arrangements myown}, month = sep, number = 3, pages = {1039-1072}, timestamp = {2020-10-16T03:03:33.000+0200}, title = {Homology, lower central series, and hyperplane arrangements}, volume = 6, year = 2020 }