The Gribov Ambiguity for Maximal Abelian and Center Gauges in SU(2)   Lattice Gauge Theory
  We present results for the fundamental string tension in SU(2) lattice gauge theory after projection to maximal abelian and direct maximal center gauges. We generate 20 Gribov copies/configuration. Abelian and center projected string tensions slowly decrease as higher values of the gauge functionals are reached. 
John D. Stack and William W. Tucker