The Yang-Mills heat flow on the moduli space of framed bundles on a   surface
  We study the analog of the Yang-Mills heat flow on the moduli space of framed bundles on a cut surface. Existence and convergence of the heat flow give a stratification of Morse type invariant under the action of the loop group. We use the stratification to prove versions of Kahler quantization commutes with reduction and Kirwan surjectivity. 
Christopher T. Woodward