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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

UFS lecturer serves on National Forensic Oversight and Ethics Board
2015-02-13

Dr Karin Ehlers

Dr Karin Ehlers, lecturer in the Department of Genetics at the University of the Free State, was elected by the Minister of Police, Mr Nkosinathi Nhleko, to serve on the National Forensic Oversight and Ethics Board which will, among others, monitor the implementation of the provisions of the DNA Act.

Previously, when DNA evidence was collected at a crime scene, it was analysed only when requested by the prosecutor or investigator when they had found a suspect and needed confirmation. With the new DNA Act, all samples collected from violent crimes must be analysed. The profiles will be compared with a convicted offender database to see if some of the unsolved cases can be linked to these perpetrators. The reason for this is that many of these offenders are repeat offenders, and this process will increase the chances of solving cases successfully.

Serving on the Board, Dr Ehlers will also have the opportunity to contribute to proposals on:
- the improvement of practices regarding the overall operations of the National Forensic DNA Database (NFDD),
- the ethical, legal, and social implications of the use of forensic DNA profiles, and
- the training and the development of criteria for the use of familial searches.

Board members will also receive and assess complaints about alleged violations relating to the abuse of DNA samples and forensic DNA profiles and/or security breaches, and will report to complainants in respect thereof.

In 2014, when all citizens in South Africa were invited to apply for a position on the National Forensic Oversight and Ethics Board, Dr Ehlers submitted her application with a motivation on how she could contribute to the function of the Board. She is one of ten persons who were appointed to serve on the Board. “The reason I was successful was due to my involvement in the development of the UFS Forensic Sciences Programme,” Dr Ehlers said.

The capacity of the country was one of the challenges that had to be overcome for this Act to take effect. ”The UFS was able to address this problem, implementing degrees in Forensic Genetics and Forensic Sciences. With these programmes we made a real difference in the fight against crime. It is a real privilege to form part of this project,” said Dr Ehlers.

Dr Karin Ehlers serves on National Forensic Oversight and Ethics Board (read the full story)

 

For more information or enquiries contact news@ufs.ac.za

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