56 citations · 130 across the 13 of their papers we have counts for
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math.GT2015
A note on the existence of essential tribranched surfaces
Stefan Friedl, Takahiro Kitayama, Matthias Nagel
The second author and Hara introduced the notion of an essential tribranched surface that is a generalisation of the notion of an essential embedded surface in a 3-manifold. We sho…
math.GT2015
Twisted Reidemeister torsion and the Thurston norm: graph manifolds and finite representations
Stefan Friedl, Matthias Nagel
We show that the Thurston norm of any irreducible 3-manifold can be detected using twisted Reidemeister torsions corresponding to integral representations and also corresponding to…
math.GT2015★ 9 cited
Unlinking information from 4-manifolds
Matthias Nagel, Brendan Owens
We generalise theorems of Cochran-Lickorish and Owens-Strle to the case of links with more than one component. This enables the use of linking forms on double branched covers, Heeg…