{"product_id":"recent-progress-in-conformal-geometry-abbas-bahri-9781860947728","title":"Recent Progress in Conformal Geometry","description":"This book presents a new front of research in conformal geometry, on sign-changing Yamabe-type problems and contact form geometry in particular. New ground is broken with the establishment of a Morse lemma at infinity for sign-changing Yamabe-type problems. This family of problems, thought to be out of reach a few years ago, becomes a family of problems which can be studied: the book lays the foundation for a program of research in this direction.In contact form geometry, a cousin of symplectic geometry, the authors prove a fundamental result of compactness in a variational problem on Legrendrian curves, which allows one to define a homology associated to a contact structure and a vector field of its kernel on a three-dimensional manifold. The homology is invariant under deformation of the contact form, and can be read on a sub-Morse complex of the Morse complex of the variational problem built with the periodic orbits of the Reeb vector-field. This book introduces, therefore, a practical tool in the field, and this homology becomes computable.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Abbas Bahri,Yongzhong Xu\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1860947727\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781860947728\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Imperial College Press\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 06\/01\/2007\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 524\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Hardcover\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 3.29lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 8.82h x 6.41w x 1.34d","brand":"Abbas Bahri","offers":[{"title":"Hardcover","offer_id":48088932090111,"sku":"9781860947728","price":196.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_cd08a873-f625-4295-bf1d-bb25e39b5d88.jpg?v=1769107347","url":"https:\/\/www.whiterainbookhouse.com\/products\/recent-progress-in-conformal-geometry-abbas-bahri-9781860947728","provider":"WR Book House","version":"1.0","type":"link"}