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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

Fun and camaraderie key to Vishuis rugby success
2017-09-27

Description: TEDxUFS   Tags: TEDxUFS

The forwards of Vishuis laid a strong foundation in
the K1 rugby final against Kagiso. This helped them
to secure a win of 38-16.
Photo: Marelize van Niekerk

They have not only been dominating the residence rugby scene at the University of the Free State over the past few years, but also nationally. Although they might experience added pressure as favourites, a key ingredient to Vishuis’ success story is their enjoyment of the game and their camaraderie.

According to Henco Posthumus, the Vishuis captain, they realise that it still remains residence rugby. “The guys pitch up at practice because they want to play, not because somebody begged them to.”

Comfortable triumph in final

Vishuis claimed their fifth Varsity Cup Koshuis title earlier this year, and will defend their national title after being crowned Kovsie residence champions on 8 September 2017. They beat Kagiso comfortably 38-16 in the K1 final, after leading by 31-9 at half-time.

Posthumus says the fun element is often forgotten, but not at Vishuis. He says it is not just about the first team either. “Almost every house member, no matter if he studies medicine or if he hasn’t played rugby before, is playing a bit of rugby on a Friday evening. That is also why we, as a fairly small residence, can field five teams.”

More than just a game

Although their proud record serves as motivation, it is about more than just rugby. “The guys grow together in different ways. It is an honour to see how they grow during a season, also spiritually.”

They have been lucky not to suffer many serious injuries over a number of seasons, Posthumus says. “We are privileged to have 110 years of history behind our residence, and people from within and outside buy into who we are.”

“Our (new) coach, Zane Botha, is also a valuable acquisition. He has taken our rugby to the next level.”

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