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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 smashes world record despite strong wind
2017-04-13

Description: Louzanne smashes world record  Tags: Louzanne smashes world record

Louzanne Coetzee and her guide
Khothatso Mokone.
Photo: Johan Roux

Despite the terribly windy conditions at this year’s Nedbank National Championships for the Physically Disabled, Louzanne Coetzee managed to improve her world record in the 5 000 m race.

Record improved by almost 40 seconds
Last year, Coetzee, who works at the Institute for Reconciliation and Social Justice at the University of the Free State (UFS), was the first blind athlete to complete the 5 000 m race in less than 20 minutes.

Her own record in the 5 000 m race (T11 category) was 19:17.06 and with the help of her guide, Khothatso Mokone, she improved it by almost 40 seconds. The new national record now stands at 18:37.23.

Coetzee says the evening before the race the winds were terrible, and she started to wonder what would happen during her race. “Even though the wind was a bit tough, overall it was a good race,” she says.

Overjoyed by exceptional time

She says that when she heard her time was a new record, she was completely overjoyed and could not believe it. “I was aiming to run just under 19 seconds but when I heard that my time was not only a personal best but also a new world record, I was over the moon.”

The Championships took place from 31 March to 4 April in Port Elizabeth. Coetzee and Mokone will be in action in a Grand Prix in Switzerland next month.

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