{"product_id":"collected-papers-gesammelte-abhandlungen","title":"Collected Papers: Gesammelte Abhandlungen","description":"\u003cp\u003eFrom the preface: Hopf algebras, Hopf fibration of spheres, Hopf-Rinow complete Riemannian manifolds, Hopf theorem on the ends of groups - can one imagine modern mathematics without all this? Many other concepts and methods, fundamental in various mathematical disciplines, also go back directly or indirectly to the work of Heinz Hopf: homological algebra, singularities of vector fields and characteristic classes, group-like spaces, global differential geometry, and the whole algebraisation of topology with its influence on group theory, analysis and algebraic geometry. It is astonishing to realize that this oeuvre of a whole scientific life consists of only about 70 writings. Astonishing also the transparent and clear style, the concreteness of the problems, and how abstract and far-reaching the methods Hopf invented.\u003c\/p\u003e","brand":"Springer","offers":[{"title":"Default Title","offer_id":45883262533830,"sku":"DADAX3540571388","price":106.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0695\/9389\/1014\/files\/61gOZ1mAzuL.jpg?v=1779801019","url":"https:\/\/ergodemedia.com\/products\/collected-papers-gesammelte-abhandlungen","provider":"Ergodemedia","version":"1.0","type":"link"}