{"product_id":"9783540442431","title":"Lecture Notes in Mathematics","description":"\u003ch1\u003eLecture Notes in Mathematics\u003c\/h1\u003e \u003ch2\u003eSchmidt, Bernhard\u003c\/h2\u003e \u003cp\u003eThis monograph contributes to the existence theory of difference sets, cyclic irreducible codes and similar objects. The new method of field descent for cyclotomic integers of presribed absolute value is developed. Applications include the first substantial progress towards the Circulant Hadamard Matrix Conjecture and Ryser`s conjecture since decades. It is shown that there is no Barker sequence of length l with 13\u0026lt;1\u0026lt;4x10^(12). Finally, a conjecturally complete classification of all irreducible cyclic two-weight codes is obtained.\u003c\/p\u003e \u003ch3\u003eDetails\u003c\/h3\u003e \u003cp\u003ePublished by: Springer\u003c\/p\u003e \u003cp\u003ePublication Date: 2002-10-23\u003c\/p\u003e \u003cp\u003eFormat: Paperback\u003c\/p\u003e \u003cp\u003eISBN-13: 9783540442431\u003c\/p\u003e \u003cp\u003eDOI: 10.1007\/b84213\u003c\/p\u003e \u003cp\u003eDimensions: 235cm x155cm\u003c\/p\u003e \u003cp\u003ePages: 108\u003c\/p\u003e ","brand":"Springer Berlin Heidelberg","offers":[{"title":"Default Title","offer_id":45369697927308,"sku":"9783540442431","price":44.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/9545\/1788\/files\/9783540442431.jpg?v=1775673965","url":"https:\/\/lateknightbooks.com\/products\/9783540442431","provider":"Late Knight Books and Services, LLC","version":"1.0","type":"link"}