Abstract
A (v, k, lambda) configuration is conjectured to exist for every v, k and lambda satisfying lambda(v-l) = k(k-l) and k - lambda is a square if v is even, x2 = (k - lambda)y2+(-1)(v-1)/2lamdaZ2 has a solution in integers x,y and z not all zero for v odd.
Publication Details
Jennifer Seberry Wallis, Some results on configurations, Journal of the Australian Mathematical Society, 12, (1971), 378-384.