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Irreducible SL(2,C)-representations of integer homology 3-spheres

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Raphael Zentner
Universit├Ąt Regensburg/MPIM
Tue, 2017-05-09 14:00 - 15:00
MPIM Lecture Hall

We prove that the splicing of any two non-trivial knots in the 3-sphere admits an irreducible SU(2)-representation of its fundamental group. Using a result of Boileau, Rubinstein and Wang, it follows that the fundamental group of any integer homology 3-sphere different from the 3-sphere admits irreducible representations of its fundamental group in SL(2,C). Our result uses instanton gauge theory.

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