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math.GT2020
The dilogarithm and abelian Chern-Simons
Daniel S. Freed, Andrew Neitzke
We construct the (enhanced Rogers) dilogarithm function from the spin Chern-Simons invariant of C*-connections. This leads to geometric proofs of basic dilogarithm identities and a…
math.GT2013★ 9 cited
Spectral networks and Fenchel-Nielsen coordinates
Lotte Hollands, Andrew Neitzke
We explain that spectral networks are a unifying framework that incorporates both shear (Fock-Goncharov) and length-twist (Fenchel-Nielsen) coordinate systems on moduli spaces of f…