{"product_id":"books-sphere-packings-lattices-and-groups-by-john-conway","title":"Sphere Packings, Lattices and Groups","description":"We now apply the algorithm above to find the 121 orbits of norm -2 vectors from the (known) nann 0 vectors, and then apply it again to find the 665 orbits of nann -4 vectors from the vectors of nann 0 and -2.","brand":"World of Books ","offers":[{"title":"Default Title","offer_id":53675364188433,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9781441931344_95ab3c42-fde7-4bab-a6a2-c42e34bdc902.jpg?v=1781540266","url":"https:\/\/www.worldofbooks.com\/en-gb\/products\/books-sphere-packings-lattices-and-groups-by-john-conway","provider":"World of Books ","version":"1.0","type":"link"}