For Weyl groups of classical types, we present formulas to calculate the restriction of Springer representations to a maximal parabolic subgroup of the same type. As a result, we give recursive formulas for Euler characteristics of Springer fibers for classical types. We also give tables of those for exceptional types.
机构:
NYU, Dept Phys, 4 Washington Pl, New York, NY 10003 USA
UCL, Dept Math, Gower St, London WC1E 6BT, EnglandNYU, Dept Phys, 4 Washington Pl, New York, NY 10003 USA