Characters and Cyclotomic Fields in Finite Geometry
โ Scribed by Bernhard Schmidt (auth.)
- Book ID
- 127396683
- Publisher
- Springer
- Year
- 2002
- Tongue
- English
- Weight
- 538 KB
- Edition
- 1
- Category
- Library
- City
- Berlin; New York
- ISBN
- 3540457976
- ISSN
- 0075-8434
- DOI
- 10.1007/b84213
No coin nor oath required. For personal study only.
โฆ Synopsis
This 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<1<4x10^(12). Finally, a conjecturally complete classification of all irreducible cyclic two-weight codes is obtained.
โฆ Subjects
Combinatorics
๐ SIMILAR VOLUMES
Difference sets are of central interest in finite geometry and design theory. One of the main techniques to investigate abelian difference sets is a discrete version of the classical Fourier transform (i.e., character theory) in connection with algebraic number theory. This approach is described usi
Difference sets are of central interest in finite geometry and design theory. One of the main techniques to investigate abelian difference sets is a discrete version of the classical Fourier transform (i.e., character theory) in connection with algebraic number theory. This approach is described usi