The h-principle and almost abelianity of the fundamental group
The h-principle and almost abelianity of the fundamental group
Let be a projective manifold satisfying the -principle. Its fundamental group is denoted by , and a group is almost abelian if it contains an abelian subgroup of finite index.
The h-principle fundamental-group conjecture. Every projective manifold satisfying the -principle should have an almost abelian fundamental group.
This is proposed as a purely topological obstruction to the -principle, combining the theorem that projective manifolds satisfying the -principle are special with the cited Abelianity conjecture. Its resolution is not specified in the source.
Sources & referencesView supporting material
Primary source
Frédéric Campana and Jörg Winkelmann, “On h-principle and specialness for complex projective manifolds”, arXiv:1210.7369 (2012).
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