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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

Shimlas have a bunch of fighters for a tough week, says Scholtz

2016-03-18

Scrumhalf Zee Mkhabela is one of the senior Shimla players who will have to help his team play three Varsity Cup matches within a week. Photo: Christaan Kotzé/SASPA

Luckily, he has a bunch of fighters in his rugby group to take on the week ahead, which is almost like a USSA rugby week with a lot of matches in a row.

This is what Hendro Scholtz, the Shimla coach, had to say about the upcoming Varsity Cup week, with his team playing three games within a week. His team will play against the University of Johannesburg (UJ) on 21 March 2016, after which they will face Maties in Cape Town on 24 March 2016, and then take on Pukke in the Mother City on 28 March 2016.

The schedule for the Varsity Cup series had to be adapted due to the recent unrest on campuses across South Africa.

According to Scholtz, the versatility of his players and the attitude of the University of the Free State (UFS) rugby team counts in their favour for the week that lies ahead. Several of the Shimla players can play in more than one position.

The Shimlas will travel with a group of 29 players, and will, after their match in the City of Gold, fly directly to Cape Town for their other two league matches.

“We will take six extra players (other than the 23-man squad) with us,” Scholtz said.

“One should select a group for this week that can fight, hang in there, and are able to play another match or two. It is like a USSA week where you need fighters.”

Prop Chase Morison, who was given a red card against the Central University of Technology in Johannesburg on 14 March 2016, wasn't sighted, and is available to play again. The Shimlas are still unbeaten after winning 10-9 against CUT in the FNB Stadium. Flyhalf Pieter-Steyn de Wet, who missed the game against CUT due to an injury, will be able to play against UJ.

The Kovsie Young Guns and Vishuis, the residence representative for the UFS, will also play a couple of matches in the coming week.

Fixtures:

Shimlas: 21 March: Shimlas v UJ (FNB Stadium); 24 March: Maties v Shimlas (Cape Town Stadium); 28 March: Puk v Shimlas (Cape Town Stadium).

Kovsie Young Guns: 19 March: Kovsie Young Guns v UJ (Rand Stadium); 24 March: Puk v Kovsie Young Guns (Rand Stadium).

Vishuis: 24 March: Vishuis tv Harlequins (NMMU, Rand Stadium); 26 March: Mopanie tv Vishuis (Tuks, (Wanderers Rugby Club); 28 March: Oppierif v Vishuis (UJ, FNB Stadium).

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