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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

Visiting Professor, Piet Bracke, Speaks on Public Mental Health
2015-02-20

Piet Bracke

Professor in the Department of Sociology at the Ghent University in Belgium, Piet Bracke, recently visited the UFS to speak about his research on the Public mental health and comparative health research: between social theory and psychiatric epidemiology.

At the public lecture on Monday 16 February, Bracke stated that part of the sociological attention to mental health and well-being was rooted in the 19th century's romanticists' discontent with self and society. The classical and contemporary social theorists' views on the disconnection between culture and the ‘real’ self resembles the more recent evolutionary psychological assumptions about the maladaptation of  psychobiological mechanisms to contemporary societal arrangements.

In contrast to these perspectives, contemporary psychiatric epidemiological research has a strongly underdeveloped conception about the nexus between society and population mental health. Both perspectives, the social-theory-and-societal-discontent approach and the biomedical psychiatric epidemiological approach, have drawbacks. Starting from the pitfalls of the aforementioned perspectives, they have been exploring the challenges posed by the development of a macro-sociology of population mental health.

Recently, this research domain has received renewed attention of scholars inside as well as outside sociology. The rise of multi-country, multilevel datasets containing health-related information, as well as the growing attention on the fundamental social causes of health and illness, and the focus on population as opposed to individual health, has contributed to the revival of comparative public mental health research. Based on findings from their recent research, they have illustrated how taking the context into account is vital when exploring the social roots of mental health and illness. In addition, they have demonstrated how they can liberate a few so-called ‘control variables’ in risk factor epidemiology – e.g. gender, education, and age – from their suppressed status by linking them to core concepts of sociology. With their research, they hope to further the development of a macro-sociology of public mental health.

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