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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

New yeast named after Bloemfontein
2011-11-21

 
Martie Smit, prof Jacobus Albertyn and Carlien Pohl.
Photo: Stefan Lotter

A second living organism was named after Bloemfontein, adding to the fact that the University of the Free State (UFS) has the largest yeast collection in the Southern Hemisphere.

In an article in the highly acclaimed scientific journal, International Journal of Systematic and Evolutionary Microbiology, three lecturers from the Department of Microbial, Biochemical and Food Biotechnology, at the UFS, Dr Carlien Pohl, Prof. Martie Smit and Prof. Jacobus Albertyn, describe four new yeast species.
 
One of these species, isolated from pine needles from Bloemfontein, has been named after this city and will be known as Rhodotorula bloemfonteinensis. ‘Rhodo’ refers to the redness of these types of yeast. This makes this yeast only the second living organism to be named after Bloemfontein. The other is a mite (Pilogalumna bloemfonteinensis), which was described in 1972.
 
In short, yeast is a micro-organism that is part of the fungi family. Prof. Albertyn, “The most common of these are the bakers’ yeast, of which the bloemfonteinensis forms part.”
 
Among these four species they discovered, the Rhodotorula pini was also discovered on the Bloemfontein Campus of the UFS during December 1995.
 
“The UFS now has the largest yeast collection in the Southern Hemisphere. All over the world, science is busy researching the field of bio-diversity. This promotes the bio-diversity at the UFS,” Prof. Albertyn says.

 

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