{"product_id":"9781470427658","title":"Nonsmooth Differential Geometry-An Approach Tailored for Spaces with Ricci Curvature Bounded from Below","description":"The author discusses in which sense general metric measure spaces possess a first order differential structure. Building on this, spaces with Ricci curvature bounded from below a second order calculus can be developed, permitting the author to define Hessian, covariant\/exterior derivatives and Ricci curvature.","brand":"Nicola Gigli","offers":[{"title":"Default Title","offer_id":46776545018174,"sku":"9781470427658","price":0.0,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4357\/7662\/products\/9781470427658_4393d2ed-0ccf-4ff7-89ed-bc36bdea6f9e.jpg?v=1707476984","url":"https:\/\/exclusivebooks.co.za\/products\/9781470427658","provider":"Exclusive Books Online","version":"1.0","type":"link"}