▁P is ier ▁has ▁author ed ▁several ▁books ▁and ▁mon ograph s ▁in ▁the ▁fields ▁of ▁functional ▁analysis , ▁harm onic ▁analysis , ▁and ▁operator ▁theory . ▁Among ▁them ▁are : ▁" The ▁Volume ▁of ▁Con vex ▁Bod ies ▁and ▁Ban ach ▁Space ▁Ge ometry ", ▁Cambridge ▁University ▁Press , ▁ 2 nd ▁ed ., ▁ 1 9 9 9 . ▁First ▁published ▁in ▁ 1 9 8 9 . ▁" Introduction ▁to ▁Oper ator ▁Space ▁Theory ", ▁Cambridge ▁University ▁Press , ▁ 2 0 0 3 . ▁" The ▁Oper ator ▁Hil bert ▁Space ▁O H , ▁Complex ▁Inter pol ation ▁and ▁T ensor ▁Norm s ", ▁Amer ▁Mathemat ical ▁Society , ▁ 1 9 9 6 . ▁" F actor ization ▁of ▁Linear ▁Oper ators ▁and ▁Ge ometry ▁of ▁Ban ach ▁Sp aces ", ▁Amer ▁Mathemat ical ▁Society , ▁ 1 9 8 6 . ▁" Sim ilar ity ▁Problem s ▁and ▁Comple t ely ▁B ounded ▁Maps ", ▁Springer , ▁ 2 nd ▁ed ., ▁ 2 0 0 1 . ▁First ▁published ▁in ▁ 1 9 9 5 . ▁" Random ▁Fourier ▁Series ▁with ▁App lications ▁to ▁Harm onic ▁Analysis ", ▁with ▁Michael ▁B . ▁Marcus , ▁Pr inc eton ▁University ▁Press , ▁ 1 9 8 1 . ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : 1 9 5 0 ▁birth s ▁Category : L iving ▁people ▁Category : 2 0 th - century ▁French ▁mathemat icians ▁Category : 2 1 st - century ▁French ▁mathemat icians ▁Category