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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

Wayde sets 200m SA record, and is world’s fastest in 2017
2017-06-13

 

Description: Wayde sets 200m SA record, banner Tags: Wayde sets 200m SA record, banner

Wayde van Niekerk is in great form leading up to the World Championships
in London in August. Photo: SASPA

 

He was the first South African to break the 20-second barrier in the 200m, but for the past two years Wayde van Niekerk had to be satisfied that fellow countryman Anaso Jobodwana was quicker. Now the Kovsie athlete isn’t only the national record holder again – he also is the fastest man on the planet in the 200m in 2017.

After Van Niekerk ran a 19.90, the world’s fastest this year, when he won the South African title in Potchefstroom in April, the American Christian Coleman (19.85) improved on that.

Personal best and 0.06 seconds quicker than Anaso
However, Van Niekerk ran a 19.84 in the 200m at the Racers Grand Prix in Kingston, Jamaica, on 11 June 2017. This was 0.06 seconds quicker than his personal best, and 0.03 seconds better than Jobodwana’s national record of 19.87 at the 2015 World Championships in Beijing. Van Niekerk was the first South African to run under 20 seconds in the 200m when he did so two years ago in 19.97 in Lucerne, Switzerland.

Same pace a second time in a week

It was also the second time in a week that the 400m world record-holder ran an 19.84 in the 200m. This after he did it on a temporary built track at the Boost Boston Games on 4 June 2017. The race was run on a straight street course and was therefore not officially recognised as a record.

“This is definitely a positive step forward,” Van Niekerk said, according to www.iaaf.org. “I felt that I was in pretty good shape last week in Boston, I wanted to repeat that here (in Kingston).”

He seems to be in good shape leading up to his attempt to run a double, his favourite 400m and the 200m, at the World Championships in London, England, in August.


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