... follows.Annals of Mathematics The perimeter inequality under Steiner symmetrization: Cases of equality By Miroslav Chleb´ık, Andrea Cianchi, and Nicola Fusco THE PERIMETER INEQUALITY UNDER STEINER ... proofreveals that the inequality −k ≤ y1(x), appearing in (4.11), does not play anyrole in the argument leading to the conclusions of the present step. THE PERIMETER INEQUALITY UNDER STEINER SYMMETRIZATION549Step ... G.(4.59)Annals of Mathematics, 162 (2005), 525–555 The perimeter inequality under Steiner symmetrization: Cases of equality By Miroslav Chleb´ık, Andrea Cianchi, and Nicola FuscoAbstractSteiner...