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27 May 2022 | Story Leonie Bolleurs | Photo Charl Devenish
Prof Tomas Vetrik
Prof Tomas Vetrik, Professor in the Department of Mathematics and Applied Mathematics, recently delivered his inaugural lecture on the UFS Bloemfontein Campus.

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

Eusebius McKaiser talks about the magic of books
2013-03-19

 

Eusebius McKaiser
Photo: Johan Roux
19 March 2013

If you want to turn around this country in terms of the rot in education, you have to start reading. You have to read for your degree."

This was the message from writer and political analyst, Eusebius McKaiser, at a public lecture hosted by the UFS Library and Information Services to celebrate South African Library Week.

Addressing the audience that consisted mostly of students, McKaiser, author of “A Bantu in my bathroom,” said it is not too late to start reading.

"We claim we are too busy as adults, but what is the opportunity cost of not reading? I think we lose our humanity, our sense of awe in the world around us when we stop reading as adults. Instead of saying we are too busy, we will do well to ask ourselves what is the cost of no longer reading as much as we did when we were children."

Reading from some of his favourite books, McKaiser spoke about writing techniques and the magic of books. He read excerpts from JM Coetzee's book “Disgrace,” which he considers to be the most important South African novel. He also read paragraphs from books by Rian Malan, James Baldwin and K Sello Duiker – calling the latter a genius.

Reflecting on the role of fiction, McKaiser said the genre is misunderstood and not utilised sufficiently by academics. "We see fiction as something restricted to the English Department or literary departments. I think fiction can be used as a tool in many departments in the humanities. It gives more real material for exploring complicated questions in the humanities and thought experiments that resemble life."

McKaiser also discussed the role of librarians and writers, saying writers should write what they like, but should not ignore the context. "As academics, librarians, teachers, we have to write for the context in which we teach. We have to order books for the context in which we are librarians and as academics we must not write textbooks for students who live in New York. We have to write textbooks for students who come from townships.”

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