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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

First Black Rag Queen wants to give voice to voiceless
2017-02-22

Description: Coronation ball 2017 Tags: Coronation ball 2017

The winners of the 2017 Amanzi Coronation
ball are, from the left: Devina Harry,
Second Princess; Kgomotso Sebusi,
First Princess; Prudence Mahlaba, Rag Queen;
Suhail Peerbhai, Mr Rag; Jordan Nadasen,
First Runner-up; and Mohlale Matlala,
Second Runner-up.
Photo: Gerhardus Bosch


“It is true what they say about your purpose driving you towards your goal. The ride to eventually becoming the first black RAG Queen was motivated by a pure desire in my heart to help other people.”

This is the moving words of Prudence Mahlaba, who was crowned Rag Queen at the Amanzi Coronation Ball on Friday 17 February 2017. Suhail Peerbhai, a second-year BCom Economics student, was crowned Mr Rag 2017.

Giving a voice to the voiceless

Mahlaba says she wants to make a positive impact, “not only on the less fortunate, but also on the voiceless.” The fourth-year LLB student strives to adhere to the vision of the acronym RAG (Receive and Give). RAG is mainly about a good cause in order to make a difference.
“It is beauty with a purpose, practising what you preach, and doing unto others what you want them to do unto you,” Mahlaba said.

It was a night of glitz and glamour as the finalists made a last bid for the sought-after titles at the prestigious event held at the Student Church on the Bloemfontein Campus of the University of the Free State.

Role provide foundation for change
“Becoming Mr Rag is an exceptional feeling; however, this role entails much more responsibility,” Peerbhai said. “At a time like this, it has given me a solid foundation to make a difference in communities that are less fortunate.”

His advice to future participants in the contest is, “to go for it, since it entails the most life-changing challenges students in our era can face. No classroom teachings can provide you with the same values and experiences.”

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