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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

Ranks of NRF researchers at Qwaqwa Campus strengthened

2014-11-03

From the left are: Profs Birhanu Dejene, Oriel Thekisoe, Drs Aliza le Roux and Geofrey Mukwada. (Prof Riaan Luyt was absent due to being abroad.)
Photo: Thabo Kessah

The list of researchers at the UFS Qwaqwa Campus rated by the National Research Foundation (NRF) was strengthened with the addition of Dr Geofrey Mukwada, who will have recognition as established researcher (C) from 2015.

Mukwada is working in the Department of Geography. His research focus is rural livelihoods, sustainable rural livelihoods, conservation of natural resources and climate change.

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. Ratings are valid for a period of six years and researchers are invited to apply for re-evaluation in the fifth year.

On the Qwaqwa Campus, Profs Riaan Luyt and Birhanu Dejene enjoy status as established (C) researchers – Prof Luyt in polymer nano-composites and polymer compounds and Prof Dejene in solar energy (photovoltaic).

Dr Aliza le Roux and Prof Oriel Thekiso are recognised as promising young (Y) researchers. Dr le Roux’s research focus is behavioural ecology, predator-prey interaction, spatial cognition, cognitive ecology, communication, zoology, individual-based modelling, animal behaviour (primates, carnivore biology) and socio-biology (mammals).

Prof Thekisoe is conducting research on applied molecular diagnostics, ectoparasites, blood parasites, helminthology, molecular parasitology, entomology and parasitology, veterinary parasitology, parasitological techniques, host-parasite interaction and zoonosis.

These researchers are proud export products of the University of the Free State.

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