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A survey of partial difference sets

- S. L. Ma
- Mathematics, Computer Science
- Des. Codes Cryptogr.
- 1 July 1994

TLDR

Partial difference sets

- S. L. Ma
- Computer Science, Mathematics
- Discret. Math.
- 1 March 1984

A (?,k,?,β)-partial difference set in a finite group G of order ? is a subset D of G with k distinct elements such that expressions dnd?12 for d1 and d2 in D, represent each non-identity element not… Expand

On non-existence of perfect and nearly perfect sequences

- S. L. Ma, Wei Shean Ng
- Mathematics, Computer Science
- Int. J. Inf. Coding Theory
- 1 March 2009

We study the complex p-ary perfect and nearly perfect sequences where p is an odd prime and show that the existence of such sequences is equivalent to the existence of certain kinds of difference… Expand

Constructions of Partial Difference Sets and Relative Difference Sets on p-Groups

- K. H. Leung, S. L. Ma
- Mathematics
- 1 November 1990

By using some finite local rings, we construct some new partial difference sets and relative difference sets on ^-groups where p is any prime. When p = 2, some of the partial difference sets… Expand

Planar Functions, Relative Difference Sets, and Character Theory

- S. L. Ma
- Mathematics
- 15 October 1996

Planar functions from2nto3nare studied in this paper. By investigating the character values of the corresponding relative difference sets, we obtain some nonexistence results of planar functions. In… Expand

The structure of Schur rings over cyclic groups

- K. H. Leung, S. L. Ma
- Mathematics
- 29 October 1990

Abstract Let G be a finite group and D 1 , D 2 ,…, D d be a partition of G . Suppose, for each i =1,2,…, d , { gϵG ∣ g -1 ϵD i };= D j for some j depending on i ; and D i D j =∑ d h=1 P h ij D h for… Expand

A note on binary arrays with a certain window property

- S. L. Ma
- Mathematics, Computer Science
- IEEE Trans. Inf. Theory
- 1 September 1984

For some rs = 2^{mn} , there exist periodic r \times s binary arrays such that all m \times n binary matrices will appear in it. As two-dimensional versions of de Bruijn sequences, these kinds of… Expand

Study of proper circulant weighing matrices with weight 9

- Ang Miin Huey, K. Arasu, S. L. Ma, Y. Strassler
- Computer Science, Mathematics
- Discret. Math.
- 1 July 2008

We provide the first theoretical proof of the spectrum of orders n for which circulant weighing matrices with weight 9 exist. This spectrum consists of those positive integers n, which are multiples… Expand

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