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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

“We relied on outsiders to document our histories.” – Zanele Muholi delivers Women’s Day Lecture
2014-08-13

 

Zanele Muholi
Photo: Stephen Collett

“Our society is decaying because of hate crimes against LGBTI groups. You can’t say it does not affect you, because each of us is at least connected to one person [of LGBTI orientation].”

These words by Zanele Muholi, photographer and visual activist of LGBTI rights, who delivered the Women’s Day Lecture. The event commemorated Women’s Day and took place on Thursday 7 August 2014 at the Bloemfontein Campus. The lecture was hosted by the Centre for Africa Studies, as part of their Gender Studies Programme.

Muholi screened photographs featuring lesbian couples and recounted their all-too-real life stories. Her work emphasises the importance of queering the normative gaze by representing black lesbians in ‘straight’ portraits in a collection of works titled ‘Faces and Phases’. By focusing on lesbians in her work, Muholi shows that women in same sex relationships are just women, with the same dreams and aspirations as their heterosexual sisters.

But lesbian women carry an additional, grave fear – that of corrective rape. Muholi speaks on this topic in the video, ‘We live in fear’, which she screened during her talk. The documentary features the lives of lesbian women in Kwa Thema township in Johannesburg. Shockwaves spread through this settlement in 2008 after the brutal killing of a lesbian woman and the ensuing series of hate crimes against the LGBTI community.

Zanele describes her work as “documenting our own stories. For years we relied on outsiders to document our histories. We should do it ourselves.”

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