This is the first volume of a two-volume text on design theory. Since the first edition, there
has been extensive development of the theory. In particular, the growing importance of …

There is a well-known correspondence between symmetric 2-(4ju—1, 2/z—1,/z—1) designs
and Hadamard matrices of order 4^. It is not so well known that there is a natural …

This paper establishes a correspondence between mutually orthogonal frequency squares
(MOFS) and nets satisfying an extra property (“framed nets”). In particular, we provide a new …

Until recently, the known symmetric nets were class-regular and therefore satisfied a certain
geometric condition that defines the class of nets known as tactical symmetric nets. Thus the …

A theory of certain types of translations for generalised nets is developed, and the structure
of nets constructed by a special method is analysed, especially with regard to subsets and …

The first infinite families of symmetric designs were obtained from finite projective
geometries, Hadamard matrices, and difference sets. Some of these symmetric designs …

The first section of the paper surveys some of the results concerning the relationship
between generalised Hadamard (GH) matrices and the groups and nets associated with …

A construction method for group divisible designs is employed to construct (i) infinitely many
non-symmetric semiregular group divisible designs whose duals are semiregular group …

Shoaib ud Din Mathematics Deparīment Page 54 Punjab University Journal of Mathematics
Vol. XXVII,(1994), pp 52-57 A CHARACTERISATION OF HADAMARD HYPERNETS Shoaib …

In this chapter we continue our exposition of the crypto topics which was begun in the
previous chapter. This chapter covers: Secret Sharing, Threshold Cryptography, Signature …