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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

RSG Crossword Tournament helps to celebrate language
2016-07-27

Description: RSG Crossword Tournament  Tags: RSG Crossword Tournament

Dr Annette de Wet (left), Assistant Director
of the Unit for Language Development in
the Centre for Teaching and Learning at
the UFS, Albe Grobbelaar from XWord,
Prof Angelique van Niekerk, Head of the
Department of Afrikaans and Dutch, German
and French, and Prof Lucius Botes, Dean of the
Faculty of the Humanities, during the launch
of the RSG Crossword Tournament.
Photo: Jóhann Thormählen

Sometimes it is difficult for language departments to be topical and to show their relevance for the people out there. However, with the RSG Crossword Tournament, this became possible and Afrikaans could be celebrated in a positive manner. This is what Prof Angelique van Niekerk, Head of the Department of Afrikaans and Dutch, German and French at the University of the Free State (UFS), had to say about this initiative.

Interest during the Vrystaat Arts Festival exceeded all expectations. Altogether, 46 participants from across the country participated on 15 and 16 July 2016. Ilse van Hemert from Pretoria was crowned as the first South African crossword champion.

New dimension to language milieu

Prof Van Niekerk said people are familiar with crossword puzzles from the media, and it was the first time that a tournament like this was presented to the public in South Africa. “This tournament brings something like linguistics and linguistic sensitivity to the fore,” she said. “It is another dimension of the language milieu.” This is exactly why her department would like to see it grow in future.

Wordplay serves as inspiration

The idea for the tournament is based loosely on the film, Wordplay (2006), which is set in New York, and the annual New York Times Crossword Tournament. The South African Tournament was presented in conjunction with the crossword group, XWord, Prof Van Niekerk’s department, and the radio station RSG as brand sponsor.

Crossword puzzles and blockbusters crosswords completed

“This tournament brings something like
linguistics and linguistic sensitivity to
the fore.”


Albe Grobbelaar from XWord said the winners were determined on a points basis. “Competitors had to complete two crossword puzzles and one blockbuster crossword. The difference between the two is that a blockbuster’s clues are within the blocks or grid, but with the crossword, you have white and black blocks with the clues separate on the outside.”

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