Pay-per-download papers are often freely downloadable from an author's website: As with the first paper mentioned on this web page: < http://www.unige.ch/math/folks/parlier/publications.html >. --Dan << A matrix A of order n is "cyclic" when A[i,j] is a function only of (i-j)(mod n), and "0-1" when A[i,j] € {0,1}. What is a criterion for such a matrix to be singular (over the integers)? What is the maximum absolute value of its determinant as a function of n? [Do I feel a OEIS-worthy sequence coming on?]

...