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Prof Tomas Vetrik, addicted to maths research

27 May 2022 | Story Leonie Bolleurs | Photo Charl Devenish

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

Culture contributes to success of UFS rugby teams

2015-12-15

The Sevens team of the University of the Free State followed in the footsteps of the Shimlas when the team was crowned national champion. The Kovsies Sevens team beat Tukkies April in the final of the Varsity Sevens tournament. Photo: Supplied.

The University of the Free State (UFS) Rugby Club has succeeded once again in creating a culture of values.

Marius van Rensburg, Chairman of the UFS Rugby Club, believes this was one of the reasons why Kovsies had so many rugby successes this year.

The UFS knows that money, which is more abundant at bigger universities, won't change the club into a rugby force, but "there is something special here," he said.

Van Rensburg added that the success of Shimlas, who won the Varsity Cup for the first time, also helped to build a winning culture.

Seven finals

Seven of the UFS Rugby Club's teams played in finals during 2015.

Shimlas beat the Pukke in the Varsity Cup final at Shimla Park on the Bloemfontein Campus.

The Kovsie Young Guns (against Tukkies) and Vishuis (Mopanie from Tukkies) got stuck in Bloemfontein in Varsity Cup finals.

The Shimlas won Section B of the USSA tournament in Johannesburg (against Madibaz in the final).

A strong Irawa rugby team beat Shimlas in the City Cup.

The Kovsie Sevens team was crowned as the Varsity Champions in Cape Town after beating Tukkies in the final. The team was beaten by Maties in the final of the USSA Sevens tournament in George.

Shimlas lays foundation

According to Van Rensburg, the Varsity Cup triumph by Shimlas laid a good foundation.

“After what happened in the Varsity Cup, the winning culture kind of washed over the other teams,” he said.

He also thinks the 2015 successes didn't happen overnight, but that the club managed to bring back good values. He feels that Franco Smith, the former Shimlas coach who is the Cheetahs’ current coach, also played an important part.

Greater pressure in 2016

In 2016, the UFS's rugby teams will have a greater target on their backs.

Van Rensburg agrees that there will be greater pressure, but the structures are in place.

He feels that Varsity Cup success goes together with a touch of luck, of which Shimlas had some this year.

“Looking at the draw, Shimlas will play their first two matches away against Ikeys and Tukkies. Therefore, after two matches, one might have no league points, and that would place the team under immediate pressure.”

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