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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

Out of the ordinary lunch with Prof Jansen
2015-08-17

Prof Jansen and the twins pose for pictures after enjoying a laugh and chat at the lunch event.

Numerous sets of twins and a set of triplets were entertained by, and enjoyed lunch with, the Vice-Chancellor and Rector of the university, Prof Jonathan Jansen.  Wednesday 12 August 2015 marked an extraordinary day in the Kovsie history book.

The Reitz Hall in the Centenary complex was filled with echoes of laughter as Prof Jansen told “twin jokes” he had Googled earlier for the occasion. Save for the humour, he said that twins and triplets represent a unique bond.  “After all, we should be striving for a way of being together,” he said, speaking about the quest for national solidarity.

Sitting in groups of six, and after the introductions, the duos and trio were soon engaged in conversation.

Anita and Mikita Miza, who were sharing a table with Marike and Ilna Marais, told stories from their childhood.

“We did not realise that we were twins until we were in grade one,” said Anita, who is studying the same course as her sister. Mikita is in the second year of her BSoc Science degree, while her twin is a year ahead. She had to remain in Mtata, their hometown, for a year while Anita began her first year. “It was the longest year of my life,” said Mikita.

Marike and Ilna are first years in Physiotherapy and Optometry, respectively. When asked by Prof Jansen what they never share, the non-identical twins were quick to reply: “clothes,” although they still share a room. When they were in high school, fellow learners struggled to believe that Marike and Ilna are twins, because of their distinctly different looks.

The lunch united strangers, who have a unique common bond, and acted as a platform to tell interesting stories that are seldom heard.

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