International Workshop on Hadamard Matrices and their Applications In honour of the 60th birthday of Prof. Kathy Horadam

The workshop will bring together the varied researchers in Design theory and combinatorics in Australia and overseas.

28-30 November 2011


A highly specialized mathematics conference in honour of the 60th birthday of Professor Kathy Horadam, ran from 28th to 30th November in the School of Mathematical and Geospatial Sciences at RMIT University. There were a total of 38 participants; 17 international researchers representing the USA, Canada, Spain, Hungary, Ireland and New Zealand, as well as researchers from a number of Australian universities, including ANU, Universities of Melbourne, Newcastle, Wollongong, Queensland, Western Australia, RMIT, Monash University and QUT.

The researchers gathered at RMIT to share their knowledge and love for Hadamard matrices.  Opening the workshop, Winthrop Professor/ARC Federation Fellow Cheryl Prager of the University of Western Australia, said that Kathy was a woman in mathematics par excellence and a great role model for young mathematicians in this country.


The workshop fits in the area of Design theory, a branch of combinatorial mathematics, and Professor Jennifer Seberry of the University of Wollongong suggested that the beautiful art being produced by many of the researchers to visualize their work needed to be publicized to make the public more aware of the “beauty” of mathematics.

In her invited talk, Professor Kathy Horadam spoke of the need to work on the “hard” problems and remembered the late Dr. Warwick de Launey, who with her co-founded the area of cocyclic Hadamard matrices.

During the lunch and tea breaks, examples of Warwick’s art were run as a slide show, illustrating the, often hidden, artistic side of most mathematicians.


The local organiser, Dr Asha Rao said that it was inspiring to have so many participants attend such an exclusive workshop and that the workshop was an outstanding success. Funding support from AMSI, the School and the Information Security-Informatics research group enabled the organisers to partly fund the expenses of 10 researchers, including 4 plenary speakers and 3 PhD students.


Organising Committee

  • Asha Rao (RMIT University)
  • Victor Alvarez (University of Sevilla)
  • Jennifer Seberry (University of Wollongong)