Title of article :
Nonexistence of two circulant weighing matrices of weight 81
Author/Authors :
-، - نويسنده Wright State University Arasu, K. T. , -، - نويسنده Wright State University Bayes, Kyle , -، - نويسنده Institute for Research in Fundamental Sciences (IPM) Nabavi, Ali
Issue Information :
فصلنامه با شماره پیاپی 0 سال 2015
Abstract :
In this paper, we prove the nonexistence of two weighing matrices of weight 81, namely $CW(88,81)$ and $CW(99,81)$. We will apply two very different methods to do so; for the case of $CW(88,81)$, we will use almost purely counting methods, while for $CW(99,81)$, we will use algebraic methods.
Journal title :
Transactions on Combinatorics
Journal title :
Transactions on Combinatorics