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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

“I, too, am an African,” says visiting US drama professor

2013-03-06

Africans are of blood and of soil, says Prof Charles Dumas in his inaugural lecture at the UFS. Speaking on the topic I, too, am an African, Prof Dumas reminisced about his life and experiences on the continent.
Photo: Minette Grove
05 March 2013

Lecture (pdf)

What is an African? Is it those born in Africa, defined in racial and genealogical terms, or those who identifies with the continent in nationality and ancestral location? Did the descendants of enslaved Africans in the US, the Caribbean or Brazil lose their Africaness when their ancestors were put on slave ships to the New World?

These were some of the questions raised by Prof Charles Dumas, visiting senior professor in the Department Drama and Theatre Arts, in his inaugural lecture at the university.

Proclaiming attachment to the continent, Prof Dumas told his audience there are two types of Africans: Africans of the blood and Africans of the soil. In a speech titled, “I, too, am an African,” he stated that he lay claim to his ancestral birthright not because of blood relationship to an identifiable ethnic group or birthright to the continent, but because he earned it.

“I suggest another way that one can be an African, is through trial and struggle to be reborn an African in spirit. It is a ritual journey that may be taken by anyone. For, after all, if we are to believe the anthropologists who tell us that human life as we know it began in the Olduvai Gorge, genetically we are all African in origin.”

Prof Dumas, a senior professor at Penn State University in the USA, took the audience on a journey of his experiences on the continent, starting in 1978 when he first came to South Africa as a legal observer. Noticing the changes between Apartheid and today’s South Africa, he said this generation are committed to learn from each other – and that is the most important, he said.

“With their hopes and aspirations they earnestly desire to live in the new South Africa that we promised them. We must support them in their effort. It is time we stored our old baggage in the closet.”

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