Summary and Info
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
More About the Author
Bernhard Woldemar Schmidt (11 April [O.S. 30 March] 1879 on Naissaar, Estonia, Russian Empire – 1 December 1935 in Hamburg, Germany) was a German optician.
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