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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

Prof Finkelstein current and only A-rated researcher in Probability and Statistics in SA

2014-10-28

Prof Maxim Finkelstein
Photo: Johan Roux

Prof Maxim Finkelstein from the Department of Mathematical Statistics at the University of the Free State (UFS) received an A-rating from the National Research Foundation (NRF). This makes him the only A-rated researcher in ‘Probability and Statistics’ regarding Mathematical Sciences in the country.

According to the NRF-rating process, a person with an A-rating is a world leader in his field.

Prof Jonathan Jansen, Vice-Chancellor and Rector, said: "I am absolutely delighted for Professor Finkelstein and for the fact that this is one of the clearest signs that the UFS has significantly increased its standards of research across the institution as a whole."

Prof Finkelstein says this rating means a great deal to him, since it is a reflection of his dedication and perseverance.

“Of course, the rating is not a goal in itself,” Prof Finkelstein says. “The goal is the high quality research and the rating is just an objective indication of this. Along with the satisfaction, this rating brings the responsibility for maintaining this high status in the future.”

Prof Finkelstein conducts his general research in the field of ‘Probability and Statistics’, but his specific area of focus is ‘Stochastic Modelling’. Prof Finkelstein solely lectures postgraduate students and also mentors a few master’s and PhD students. This affords him the time to mainly concentrate on his research.

“Finally, I wish to emphasise the fact that high-quality research became the prime goal at the UFS,” says Prof Finkelstein. He underscores the efforts of the Vice-Chancellor and the Vice-Rector: Research in creating excellent possibilities for researchers. This has already resulted in remarkable improvements in the UFS’s research outputs – and consequently an increase in the number of rated researchers at the university.

A total of 119 UFS researchers currently have evaluation and rating status from the NRF, says Nico Benson, Deputy Director: Research Development. Currently (October 2014) 29 researchers are still waiting for response from the NRF regarding applications submitted. A total of 16 ratings are already known. On the Qwaqwa Campus of the UFS, five researchers are rated.

Prof Finkelstein's A-rating will become effective from 1 January 2015. Ratings are valid for a period of six years and researchers are invited to apply for re-evaluation in the fifth year.

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