Since the efficiency factors compare the designs to a (hypothetical) orthogonal design, values of 100% are not possible in this case. The OPTEX procedure includes facilities for examining the ...

Several important series of balanced incomplete block designs can be derived from orthogonal factorial designs. One is the series on balanced lattice of Yates (1936); refer to page 396 of Cochran and ...

An \ (A_1'\) cyclic ordering of a BIBD (v,k,λ) is a listing of the elements of its block set such that consecutive blocks do not intersect and the last block does not intersect the first–-such an ...

For a given block size, replication, and number of treatments, it is well known that a balanced incomplete block design, if one exists, is of maximum efficiency. We take the case of an even number of ...

Abstract: We present a series of structured LDPC codes suitable for use in quantum error correction. Those codes belong to the class of dual-containing Calderbank ...