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27 May 2022 | Story Leonie Bolleurs | Photo Charl Devenish
Prof Tomas Vetrik
Prof Tomas Vetrik, Professor in the Department of Mathematics and Applied Mathematics, recently delivered his inaugural lecture on the UFS Bloemfontein Campus.

Prof Tomas Vetrik, Professor in the Department of Mathematics and Applied Mathematics at the University of the Free State (UFS), recently delivered his inaugural lecture on the Bloemfontein Campus.

His research area is graph theory, and he mainly focuses on the degree-diameter problem, graph indices, and metric dimension of graphs.

Research focus

According to Prof Vetrik, mathematics was always his favourite subject in school. He also excelled in maths at university and decided to enrol for a course on graph theory while working on his master’s degree. “I liked it, so I also chose topics from graph theory for my PhD thesis,” he says.

In 2014, at the age of 32, he was appointed Associate Professor at the UFS, after postdoctoral research at the University of KwaZulu-Natal and working at the University of Pretoria. An NRF-rated researcher, he has published close to 75 research papers, a third of that as a single author in some of the most well-known journals in his area. Moreover, he was also research supervisor of three PhD and three master’s students.

International collaborations

In the eight years since his appointment at the UFS, Prof Vetrik has made research visits to universities from 14 different countries that have invited him for research collaborations. 

“I am often overseas. I like working from different places. It is interesting to me, and it helps me to be productive,” says Prof Vetrik, explaining some of the inspiration behind his mathematical ideas.

In the next two years, he would like to study more general mathematical problems beyond his current research area.

He says he is addicted to his research. “It overshadows all my other interests.” 

On the rare occasion when he is not working on his research, Prof Vetrik states that he has to keep himself busy. Unable to relax and do nothing, he likes to do sports of some kind or to travel. 

“I am a simple person. I do not even have a TV at home. I use an old-fashioned mobile phone that cannot access the internet,” he says.


News Archive

UFS hosts colloquium on technological higher education
2016-10-27

Description: Technology colloquium Tags: Technology colloquium

Prof Lew Zipin, Prof Sechaba Mahlomaholo,
Prof Marie Brennan and Dr Milton Nkoane,
attended the Faculty of Education’s colloquium
on the field of technological higher education
and its contribution to the knowledge society,
at the UFS Bloemfontein Campus. 

The University of the Free State’s (UFS) Faculty of Education, in collaboration with the Research and Development Unit from the Central University of Technology (CUT), hosted a colloquium on the field of technological higher education and its contribution to the knowledge society. Prof Marie Brennan and Prof Lew Zipin, both from Victoria University in Melbourne, Australia, presented the keynote addresses of the colloquium.

The past, present and future
The current fees protests in South Africa have caused universities to rethink and strategise new ways of delivering knowledge. Prof Brennan cautioned that when moving towards technological solutions for teaching, a crucial balance between past knowledge and practices and present and future knowledge and practices needed to be maintained.
“Knowledge is always dynamic, always generated from live problems, and therefore always relies on social interactions. Face-to-face interaction is removed by intense interaction with technology. If knowledge is presently linked to technology, we as academics must be able to move it. However, we should not neglect the indigenous knowledge that was generated through face-to-face interaction,” said Prof Brennan.
She purported that a reconnection between social relations and technology was important but to achieve this, a clearer pedagogical understanding of knowledge production was needed.

Never simplify complex problems

Prof Zipin said academics were constantly seeking complex problems and therefore could not reduce the complexity of a problem to simplify it for students entering the higher education space.
“We need to become a knowledge society. Ideologies often sway us not to look at the complexities of knowledge otherwise these ideologies would not be persuasive,” said Prof Zipin.

Is the technological move counterproductive?
Prof Zipin also cautioned that the move towards technological means for transferring knowledge had its own drawbacks. Institutions are a knowledge economy and its product is human capital. However, producing graduates who catered only to a technological society created downward mobility.
“People’s jobs are replaced by technology. This causes wages to decrease significantly because of structural inequalities, the move towards tech-based schooling should be done cautiously,” said Prof Zipin.

Simplicity not the ultimate sophistication
Prof Zipin concluded by stating that higher education had a responsibility to give its students the best possible future, this could be done by creating hegemonic relationships between institutions of higher learning, government and the private sector. Academics needed to fill the gap and apply their knowledge by applying complexity to social issues and allowing the complexity of these issues to flourish, the professor said.

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