University of Birmingham > Talks@bham > Birmingham and Warwick Algebra Seminar  > Uncountably many groups of type FP

Uncountably many groups of type FP

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If you have a question about this talk, please contact David Craven.

FP2 is the homological algebra version of ‘finitely presented’. For around 30 years it was open whether FP2 is equivalent to ‘finitely presented’. Bestvina and Brady gave examples of non-finitely presented FP2 groups in the late 1990s. Their examples are subgroups of finitely presented groups; in particular there are only countably many of them. I will discuss their construction and my new version which constructs a lot more groups.

This talk is part of the Birmingham and Warwick Algebra Seminar series.

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