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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

Three OSM students selected for the 2013 World Youth Symphony Orchestra

2013-01-25

Carmi Nel	Elsabe Raath
Maja van Dyk

25 January 2013

Three students from the University of the Free State’s Odeion School of Music (OSM) have proved their mettle. Carmi Viljoen (violin), Elsabé Raath (viola) and Maja van Dyk (viola), have been accepted into the prestigious World Youth Orchestra – an orchestra known worldwide for its quality and the prix de corps itadvances between nations.

Musica Europa, an Italian cultural association, founded the World Youth Orchestra (WYO) in its present guise in 2001. It has close ties with UNICEF and its mission is to combine music with social activities from cultures all over to world in order to enrich the cultural life of all.

Rigorous auditions are held which require applicants to upload video recordings onto a website (Vimeo). An international board of adjudicators subsequently listens to these recordings and select the best.The three OSM students were good enough to make the grade.

These three musicians are also members of the Free State Symphony Orchestra, as well as the MIAGI orchestra that toured Europe successfully last year. They are also outstanding chamber musicians. Carmi and Elsabé, as members of the Junior Odeion String Quartet, have shown that they are on par with international standards and have toured The Netherlands. In 2012, Maja van Dyk had been selected to perform as soloist with the National Youth String Orchestra under the baton of Swedish conductor and violinist, Fredrik Burstedt.

They first heard of the possibility of playing for the WYO through Anmari van der Westhuizen, lecturer at the OSM. Margarite Spies from the KZN Philharmonic Orchestra (KZNPO) had contacted her in search of worthy candidates. A scant three weeks later, they received the good news of their inclusion.

The orchestra, with representatives from five continents, will be touring South Africa this year and no less than nine South Africans have been included. The tour kicks off in Durban, followed by performances in East London, Plettenberg Bay, George, Knysna, Stellenbosch, with a grand finale in the Cape Town City Hall.

Works that will be performed include ‘’Romeo and Juliet’’ by Prokofiev, the irrepressible “Carnival Overture” by Dvorák, Barber’s ‘’Adagio for Strings’’ and part of Mahler’s majestic Fifth Symphony, all under the baton of the dynamic Josep Vicent.

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