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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

Louzanne breaks own world record in Switzerland
2017-06-09

Description: Louzanne breaks own world record  Tags: Louzanne breaks own world record

Rufus Botha (left), coach of the athlete Louzanne Coetzee,
went overseas with Coetzee and her guide,
Khothatso Mokone, for a race for the first time.
Coetzee improved her T11 5 000 m world record with more
than 20 seconds in Switzerland.
Photo: Johan Roux

She fought against illness, had to get the green light from medical personnel shortly before her main race, and was very nervous. However, on 5 June 2017, the blind athlete Louzanne Coetzee managed to improve the T11 5 000 m world record with more than 20 seconds.

The Kovsie star’s time of 18:14.27 at the ParAthletics Grand Prix in Nottwil, Switzerland, was approximately 23 seconds faster than her previous world record (18:37.23). In addition, Coetzee, who works at the Institute for Reconciliation and Social Justice at the University of the Free State, also improved the South African T11 800 m record to 2:30.18 on 2 June 2017, and her 4:59.54 on 3 June 2017 in the T11 1 500 m was almost another national record.

Carried by UFS and other support
“One could never be ungrateful when running close to your personal best,” Coetzee said. “Fortunately, with God’s blessing, the support of everybody at home, support from the university, as well as my mom and them, it really was a very blessed and successful event.”

According to her coach, Rufus Botha, Coetzee was not feeling well before the event and had to get medical clearance before the 5 000 m. He told her not to run too hard, even though their goal was 18:20. “She ran an incredible final 600 m, which brought the time down to 18:14,” he said. “It was amazing to watch.”

Botha’s knowledge valuable abroad
He enjoyed going overseas with Coetzee and her guide, Khothatso Mokone, for the first time. “His (Botha’s) experience, knowledge, support, and coaching was extremely valuable,” Coetzee said. “It will definitely help me in future: how to approach things, and everything he shared with us.”

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