Large <Emphasis Type="Italic">N</Emphasis> Expansion of <Emphasis Type="Italic">q</Emphasis>-Deformed Two-Dimensional Yang-Mills Theory and Hecke Algebras
1.Max-Planck-Institut für Gravitationsphysik,Albert-Einstein-Institut,Golm,Germany;2.Department of Physics, Queen Mary,University of London,London,UK;3.Institut für Physik,Humboldt Universit?t zu Berlin,Berlin,Germany
Abstract:
We derive the q-deformation of the chiral Gross-Taylor holomorphic string large N expansion of two dimensional SU(N) Yang-Mills theory. Delta functions on symmetric group algebras are replaced by the corresponding objects (canonical trace
functions) for Hecke algebras. The role of the Schur-Weyl duality between unitary groups and symmetric groups is now played
by q-deformed Schur-Weyl duality of quantum groups. The appearance of Euler characters of configuration spaces of Riemann surfaces
in the expansion persists. We discuss the geometrical meaning of these formulae.