Author pages are created from data sourced from our academic publisher partnerships and public sources.

Publications Influence

Share This Author

On Hadamard matrices

- Jennifer Wallis
- Mathematics
- 1 March 1975

Abstract Recent advances in the construction of Hadamard matrices have depended on the existence of Baumert-Hall arrays and four (1, −1) matrices A, B, C, D of order m which are of Williamson type,… Expand

Combinatorics: room squares, sum-free sets, Hadamard matrices

- W. Wallis, A. Street, Jennifer Wallis
- Mathematics
- 1972

Now welcome, the most inspiring book today from a very professional writer in the world, combinatorics room squares sum free sets hadamard matrices. This is the book that many people in the world… Expand

A construction for Hadamard arrays

- J. Cooper, Jennifer Wallis
- Mathematics
- 1 October 1972

We give a construction for Hadamard arrays and exhibit the arrays of orders 4t , tE{l,3,5,7, ... 19} This gives seventeen new Hadamard matrices of order less than 4000. Disciplines Physical Sciences… Expand

Two new block designs

- Jennifer Wallis
- Mathematics
- 1 December 1969

In this note the matrices W, X. Y, and Z are the incidence matrices of the (u, k, ,\,) configurations (15, 7, 3), (25,9,3), (45, 12,3), and (36, 15,6), respectively. Wand X are new formulations of… Expand

Constructions for amicable orthogonal designs

- Jennifer Wallis
- Mathematics
- 1 April 1975

Infinite families of amicable orthogonal designs are constructed with (i) both of type (1, q ) in order q + 1 when q ≡ 3 (mod 4) is a prime power, (ii) both of type (1, q ) in order 2( q + 1) where q… Expand

A class of Hadamard matrices

- Jennifer Wallis
- Mathematics
- 1969

Abstract Whenever there exists a quasi-skew Hadamard matrix of order 4m and (4n−1, k, m−n+k) and (4n−1, u, u−m) configurations with circulant incidence matrices, then there exists an Hadamard matrix… Expand

Some results on weighing matrices

- Jennifer Wallis, A. Whiteman
- Mathematics
- 1 June 1975

It is shown that if q is a prime power then there exists a circulant weighing matrix of order q 2 + q + 1 with q 2 nonzero elements per row and column. This result allows the bound N to be lowered in… Expand

The exceptional case in a theorem of Bose and Shrikhande

- P. Witte, Jennifer Wallis
- Mathematics
- 1 August 1977

Some (1, -1) Matrices

- Jennifer Wallis
- Mathematics
- 1 February 1971

Abstract We define an n -type (1, −1) matrix N = I + R of order n ≡ 2 (mod 4) to have R symmetric and R 2 = ( n − 1) I n . These matrices are analogous to skew-type matrices M = I + W which have W… Expand

Amicable Hadamard Matrices

- Jennifer Wallis
- Computer Science, Mathematics
- J. Comb. Theory, Ser. A
- 1 November 1971

TLDR

...

1

2

3

...