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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

Juan Odendaal invited to training camp in Switzerland

2015-10-19

Juan Odendaal recently in action at the UCI Paralympic World Cup
for road races in Pietermaritzburg.
Photo: Bertus Odendaal

Juan Odendaal from the University of the Free State (UFS) was invited to be part of a training camp in Switzerland, together with some of the world’s leading para-cyclists.

This first-year BA student was recently selected by the cycling body, Union Cyclist International (UCI), to attend the camp which will be held in Aigle from 2-12 November 2015.

Afterwards, Odendaal, who has been the junior South African champion in the C3 division in road races, time trials, and pursuit races, will travel to Manchester, England, where he will compete in a para-cycling event from 13-15 November 2015.

Recently, he took part in the senior division of the UCI Paralympic World Cup for road races for the first time, and has performed well. In this event, which was held in Pietermaritzburg, he competed against participants from countries including Germany, Australia, Spain, and Russia.

Odendaal on 11 September 2015 took eighth place in the road race and tenth place in the time trial. The road race takes place over 55 km and the time trial over 24 km.

Odendaal said he realised immediately that he was competing at senior level.

“There was a marked difference in the quality of the races,” he said, about the World Cup in Pietermaritzburg.

“It was much faster than I had expected. The average speed was 37,2 kilometres per hour.”

Odendaal also made his debut for South Africa in March of this year at the UCI Para-cycling Track World Championships in Apeldoorn, The Netherlands. At this event, he finished in fifteenth place in both the time trials and the pursuit event.

Odendaal said his main goal is the World Championships, which will take place in Montichiari, Italiy, in March 2016. He is hoping to achieve good times there in order to qualify for the 2016 Olympics in Rio de Janeiro.

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