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30 November 2021 | Story Leonie Bolleurs | Photo Supplied
Prof Johan Meyer, Senior Professor in the Department of Mathematics and Applied Mathematics, says he is looking forward to learning from others in the field during this collaboration.

What do trees, black holes, earthquakes, and time structures have in common? 

The answer to this question is that these, in one way or the other, form the focus of some of the abstracts delivered during the Annual Congress of the South African Mathematical Society. The society has as its main objective the advancement of mathematics in South Africa. 

The Department of Mathematics and Applied Mathematics at the University of the Free State (UFS), in conjunction with the South African Mathematical Society (SAMS 2021), is hosting the 64th Annual Congress of the society this week (29 November to 1 December 2021).

Prof Johan Meyer, Senior Professor in the department, says the congress, which is being conducted online, is focusing on all aspects of mathematics research, including history and teaching.

Learning from others in the field

The congress, which aims to share the latest research results in mathematics, will be attended by staff and students from universities across South Africa as well as abroad. “Anyone from the public is, of course, welcome to attend or even share their results if they are also involved in mathematics research,” adds Prof Meyer. 

He says that he is looking forward to learning from others in the field during this collaboration. 

The congress will include discussions on more than 120 abstracts, covering category theory, algebra, topology, logic; functional analysis and operator theory; finite groups and combinatorial structures; graph theory and combinatorics; lie symmetries and nonlinear differential equations; and applied and numerical mathematics.

Array of interesting topics presented

“It is important in many areas of science and engineering to predict and to simulate rare, random events, the occurrence of which may have negative or even catastrophic consequences. Examples include internet server overflows, mechanical breakdowns, floods, and financial crashes. Rare events can also have a positive effect, triggering for example chemical reactions or driving genetic evolution via random mutations.” Prof Hugo Touchette from Stellenbosch University will be shedding some light on this interesting topic in his presentation on Predicting and simulating rare events.

Prof Jeandrew Brink, Associate Professor in the Department of Mathematics and Applied Mathematics at the UFS, is presenting a plenary session on the topic Determining the geometry of strong field space-times in spite of tacitly assuming the answer during every measurement. In South Africa, state-of-the art pulsar timing data from the MeerKAT telescope will make a considerable contribution to conducting GR orbital tests. Prof Brink comments on how pulsar timing tests differ from tests using gravitational wave detectors, as well as what we can learn from the framework already employed to perform pulsar timing measurements.

News Archive

Romania and UFS work together on diagnostic programme
2009-04-28

 
Here are, from the left: Dr William Rae with Prof. Chirvase and Prof. Caramihai of the Romanian research team during their visit to Bloemfontein.
Photo: Supplied
 
A group of academics of Romania visited the Department of Medical Physics of the Faculty of Health Sciences at the University of the Free State (UFS) recently. Proff. Mihai Caramihai and Ana Chirvase are senior researchers of the Facultatea de Automatica & Calculatoare, Universitatea Politehnica Bucuresti who are working together with Prof. Charles Herbst and Dr William Rae of the UFS on the project MAmmary Malignancy Modelling using Artificial intelligence, ROmania South Africa, or Mamma Rosa. It is part of a larger local project aimed at implementing a computer-aided diagnosis programme (CAD), designed within the UFS's Department of Medical Physics, and which will take into account some of the South African requirements for computerised diagnostic radiology support. The National Research Foundation (NRF) provided travel funding and Prof. Herbst and Dr Rae visited Bucharest in November 2008 to collaborate with the Romanians. The visiting Romanian researchers were involved in a similar project where they were planning to model the changes in tumours as they grow and as they are treated. Dr Rae says there are many synergies between the two departments. The project has many aspects and there are several possibilities for related sub-projects. As a result the UFS has been able to attract three people to be involved in the project and they will do their Ph.Ds with the UFS. On the visit to Bloemfontein the roles of the researchers in the project were defined and the programme for the three-year collaboration was established. The stimulus created as a result of this collaboration has resulted in projects that will continue for at least the next four years.

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