Decomposing a Matrix into Circulant and Diagonal Factors
- Michael Schmid ,
- Rainer Steinwandt ,
- Jorn Muller-Quade ,
- Martin Roetteler ,
- Thomas Beth
Linear Algebra and its Applications | , Vol 306(1-3): pp. 131-143
Let K be a field of characteristic different from 2. It is proven that if K does not equal F_3 or F_5 each square matrix with entries in K can be written as a product of circulant and diagonal matrices with entries in K.