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Preprint Number 785

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785. Daniel Palacin, Frank Olaf Wagner (ICJ)
A Fitting Theorem for Simple Theories

Submission date: 9 October 2014.


The Fitting subgroup of a type-definable group in a simple theory is relatively definable and nilpotent. Moreover, the Fitting subgroup of a supersimple hyperdefinable group has a normal hyperdefinable nilpotent subgroup of bounded index, and is itself of bounded index in a hyperdefinable subgroup.

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Full text arXiv 1410.2583: pdf, ps.

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