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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

An article, co-authored by Kovsies’ own Miss World, Rolene Strauss, was published recently in a medical journal
2015-02-23

Rolene Strauss

The article, which deals with research on the incidence of multiple losses by children, was published in South African Family Practice.

The study was part of the third-year research project for medical students in our Faculty of Health Sciences. Rolene worked with fellow students, Leischen Branders, Mirandie Claassen, Darienne Saaiman, and Andrea van Staden. Prof Gina Joubert from the UFS’s Department of Biostatistics and Prof Hanneke Brits were the module and study leaders.

In this study, a number of cases involving Bloemfontein children experiencing loss, as well as their reaction to it, were examined.

They divided the incidents into categories in order to address the broad definition of ‘losses’.

Approximately 69% of the children in the study have experienced three or more instances of loss in their lives. About 29% of the children have experienced loss in the category Personal Loss (assault, chronic and terminal illness, amputation, malnutrition, disability, abortion, and miscarriage). The greatest number of losses occurred in the category Interpersonal Loss (87%). This group of children has had to deal with the death of one or more parents/caregivers, drug and alcohol abuse, domestic violence, divorce, homelessness, and instability. In the category, Environmental Loss, xenophobia, unsafe living conditions, inadequate support, poverty, and unemployment were looked at. A total of 82% of the children in the group have experienced losses.

Prof Hanneke Brits, study leader of the group, says the extent of multiple losses by children is a topic that hasn’t been investigated widely.

“The study shows that children should receive special attention in order to help them process the trauma. Supportive care and inter-professional services play a major role in this regard.”

 

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