11 citations · 65 across the 18 of their papers we have counts for
18 papers
Geometry of the tt*-Toda equations I: universal centralizer and symplectic groupoids
Martin A. Guest, Nan-Kuo Ho
We investigate the geometry of a certain space of meromorphic connections with irregular singularities, and prove in particular that it is a (real) symplectic Lie groupoid. The con…
Polytopes, supersymmetry, and integrable systems
Martin A. Guest, Nan-Kuo Ho
We review some links between Lie-theoretic polytopes and field theories in physics, which were proposed in the 1990's. A basic ingredient is the Coxeter Plane, whose relation to in…
Flat connections and the commutator map for SU(2)
Nan-Kuo Ho, Lisa C. Jeffrey, Paul Selick +1
We study the topology of the SU(2)-representation variety of the compact oriented surface of genus 2 with one boundary component about which the holonomy is a generator of the cent…
Kostant, Steinberg, and the Stokes matrices of the tt*-Toda equations
Martin Guest, Nan-Kuo Ho
We propose a Lie-theoretic definition of the tt*-Toda equations for any complex simple Lie algebra , based on the concept of topological-antitopological fusion which…
A Lie-theoretic description of the solution space of the tt*-Toda equations
Martin Guest, Nan-Kuo Ho
We give a Lie-theoretic explanation for the convex polytope which parametrizes the globally smooth solutions of the topological-antitopological fusion equations of Toda type (tt$^*…
The SU(2)-character variety of the closed surface of genus 2
Nan-Kuo Ho, Lisa C. Jeffrey, Khoa Dang Nguyen +1
We study the symplectic geometry of the SU(2)-representation variety of the compact oriented surface of genus 2. We use the Goldman flows to identify subsets of the moduli space wi…