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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

Mekondjo! National exhibition to reveal the courage, determination, repression and torture of PLAN
2014-05-21

 
Angelina Angula ex PLAN soldier injured during the 1978 Cassinga attack - photo by John Liebenberg.

A pioneering exhibition by John Liebenberg and Christo Doherty is about to open on the Bloemfontein Campus. ‘Mekondjo! born in the struggle for Namibia’ gives South Africans their first insight into the lives of the men and women who fought against the SADF in the bush of Northern Namibia and Angola from 1966 – 1989.

This public exhibition presents eleven portraits of People’s Liberation Army veterans in the process of speaking about and coming to terms with their very different experiences in the Namibian War of Liberation.

When the People’s Liberation Army (PLAN) returned to Namibia after the UN-supervised elections of 1989, it had been fighting against South African rule for 23 years. Formed in 1966 as the armed wing of the South West African Peoples’ Organisation, PLAN had developed from a handful of poorly armed guerrillas to a sophisticated mechanised force. These soldiers fought alongside Angolan, Russian and Cuban soldiers against the SADF and UNITA. Since SWAPO’s election victory, the new government has mythologised the heroism of the armed struggle. The stories of the individual PLAN fighters’ experiences are only now being articulated, though.

Their stories are of great courage and determination against often impossible odds; but also of repression, torture, and disastrous decisions by the PLAN leadership.

The exhibition will be on display from Thursday 22 May to Friday 23 May for the duration of the Silence after Violence conference. The conference is hosted by the UFS Institute for Reconciliation and Social Justice and the Center for Holocaust Studies at the University of Vermont.

Date: Thursday 22 May and Friday 23 May 2014
Place: Centenary Complex, Reitz Hall, Bloemfontein Campus
Exhibition Introduction: Thursday 22 May, 14:00 – 15:30
Other viewing times: intermissions during the Silence after Violence programme

The public is welcome to attend.

* Spotlight photo: PLAN commissioner Nkrumah Mushelenga, Windhoek 2013 – photo by John Liebenberg

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