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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

When entrepreneurship meets industrial innovation
2014-12-13

Johan Eksteen (Photo: Supplied)

Internationally acclaimed Argicon Pelleting is a worldwide supplier of pelleting machinery and equipment as well as agri-processing factories. The company was established in 1993 by André and Johan Eksteen, UFS 2004 MBA graduate. After taking over sole ownership, the company grew from a one-man business to an internationally respected specialist in the design and manufacturing of pelleting solutions for the agricultural industry.

A common practice in industrial procedures, pelleting involves processing material into small dry pellets. This is used globally by manufacturers of animal feed or recycling facilities that specialise in processing materials for reuse. This process, however, can only be successfully accomplished with specialised equipment, namely a pelletizer. With fifteen years’ experience in agriculture, and international exposure in countries such as Uganda, Australia, Singapore and New Caledonia, this was not a tall order for Johan.

Agricon focuses on consistently developing innovative ways to add value to its offering. The business has successfully installed pelleting equipment for a range of products, including tobacco dust, rooibos tea, human sludge waste, organic fertilizers and vermi-compost. In addition to the manufacturing of machines and equipment, the company also provides training and on-site installation for clients, as well as support following a sale or the provision of spare parts. The company also provides advice on new product developments and business opportunities for clients within the sector.

Apart from doubling its sales between 2013 and 2014, the company gained great recognition within the industry. Johan was awarded the University of the Free State Business School’s Entrepreneur award in 2013 and he is the first-prize winner of the ILO Free State EnterPRIZE Job Creation Challenge for 2014. He is currently one of 15 finalists countrywide in the Entrepreneur of the Year competition sponsored by Business Partners and Sanlam. Johan is the mentor and stand-in manager for Almenta, a skills development company (winner of the ILO Best Social Entrepreneur for Skills Development award) and Equus Groom School (winner of the ILO Social Entrepreneur in Youth Development award).

Johan was also announced as the winner of the SA entrepreneur of the year for small businesses.

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