Cl\^oture int\'egrale et op\'erations de tores alg\'ebriques de   complexit\'e un dans les vari\'et\'es affines
  We describe explicitly the normalization of affine varieties with an algebraic torus action of complexity one in terms of polyhedral divisors. We also provide a description of homogeneous integrally closed ideals of affine T-varieties of complexity one. 
Kevin Langlois (IF)
math.AG