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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

UFS blows the whistle on crime

2014-03-28

At the event were, from the left: Refiloe Seane, Director: Student Counselling and Development; Anastasia Sehlabo, SRC member for Accessibility and Student Support. Back, from the left: Melissa Barnaschone, Student Counselling and Development; and Mokgawa Kobe, Director: Protection Services.
Photo: Leonie Bolleurs

First-year students receive 1 000 whistles in project to combat crime.

Numerous safety measures were implemented by the University of the Free State in the past five years to ensure the safety of all the students and staff on all three campuses of the UFS. A large area of the UFS Campus is covered by security cameras. Red poles, equipped with panic buttons that can be activated to call for help, were also erected across the campuses.

At the beginning of 2013, as a further safety measure, whistles were handed out to female students in residences.

At an event on 26 March 2014, Refiloe Seane, Director: Student Counselling and Development, together with her team, handed over 1 000 whistles to the Student Representative Council to be distributed to first-year students. The whistles were sponsored by Prof Nicky Morgan, Vice-Rector: Operations and Mokgawa Kobe, Director: Protection Services.

“Female students are encouraged to use the whistles to call for help when they feel unsafe or are in danger. The objective is, firstly, to discourage criminals without suffering any negative consequences, and secondly, to get the attention of security or any other form of assistance,” said Melissa Barnaschone, Student Counselling and Development.

At the event, Mokgawa said: “The moment you blow this whistle, you say to the potential criminal:

I hate what you do
I will not keep quiet about it
I am doing something against crime.”

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