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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

Doctors make history with unique heart operation
2012-04-04

 

Cardiologists at the university delivered the first Melody pulmonary valve in Africa.
Photo: Evert Kleynhans
30 March 2012

Academics of the Faculty of Health Sciences at the University of the Free State made history in Africa once again this week with the implant of a special pulmonary heart valve.

“Today we are extremely proud Free State citizens,” Prof. Stephen Brown and Dr. Danie Buys from the UFS Department of Paediatrics and Child Health said after they placed the Medtronic Melody pulmonary valve in two young patients at the Universitas hospital in Bloemfontein.

This is the first time in Africa that the Melody valve is placed.

To date there are currently only 3 000 of these valves place in the world.

“It feels incredible to be part of a team of experts from the faculty.”

The Medtronic Melody valve is delivered percutaneously through a catheter from the groin. This operation is for children and young adults who are born with a malformation of their pulmonary valve.

These children often require open-heart surgery at a very young age and later require additional open-heart surgeries to restore blood flow between the heart and the lungs.

Prof. Brown said that of all congenital diseases, heart disease is most common. A lot of children born with heart disease are diagnosed very late and many die without ever receiving specialised care.

In 2011, Prof. Brown and two other cardiologists from the UFS, Prof. Hennie Theron en Dr JP Theron also reached a medical milestone when they were the first cardiologists in South Africa to do a second generation Medtronic CoreValve implant on an elderly patient.
 

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