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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

Rag teamwork leads to Armentum, Emily's float

2016-02-04

Rag video clip

Perhaps the residences Armentum and Emily Hobhouse were thrown into the deep end, but they still wanted to prove a point.

This is according to Hanko Minnaar, Residence Committee member for Rag at Armentum, shortly after the residences were announced as overall float winners of the University of the Free State (UFS).

According to Minnaar, Emily Hobhouse and Armentum overcame the challenge of building a float as a two-residence team, while most of the other hostels were in teams of three.

On 30 January 2016, after about two weeks of hard work and sweat, the residence twosome was named the winner at the Bloemfontein Campus.

“I am very proud. We couldn't have asked for more,” Minnaar said, after the residences Armentum and Emily Hobhouse celebrated their victory with house songs. “Anything is possible through teamwork.”

Tom and Jerry, Olaf and a Steri Stumpie

The theme for this year was “Cartoons, Animation, and Children's Snacks”. Among other items, Armentum and Emily Hobhouse had Tom and Jerry, Olaf from Frozen, a Steri Stumpie, and a box of Astros on their float.

Photo: Charl Devenish

“We thought hard about what we wanted,” Minnaar said.

“We also asked some children, and they said that Tom and Jerry is a favourite, and Olaf has always been a winner as well. And Steri Stumpies, of course. Who doesn't like Steri Stumpies?” The residences Marjolein, Veritas, and Akasia were second overall, with Karee, Vergeet-My-Nie, and Sonnedou third.

Colourful processions

The events of the day started off with a morning procession from the Pelonomi Hospital to the Twin City Mall in Heidedal, where students and the community celebrated together, and meals were distributed.

The evening procession, from the Tempe robot in Nelson Mandela Drive to the Old Grey Sports Grounds, was greeted by hordes of spectators along the way.

Artists and Co captivate audience

In the evening, music lovers were entertained at Old Grey Sports Grounds by the legendary artists Vusi Mahlasela, the talented Karen Zoid, and an energetic Francois van Coke.

Local bands, Rise in Red and Simple Stories, added to the excitement. To top it all off, a special laser show made for a colourful visual bonus, coupled with great sound.

2016 Float results
Rag photo gallery

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