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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

Latest information technology employed to make learning in Disaster Management easy
2014-10-20



Prof Dusan Sakulski
Photo: Leonie Bolleurs
Live, colourful, interactive, real-time-calculated. This is how Prof Dusan Sakulski, researcher and lecturer from the UFS’s Disaster Management Training and Education Centre for Africa (DiMTEC), describes his e-learning platform implemented in this department.

Rather than producing research that gathers dust somewhere in a cabinet, Prof Sakulski believes that research should be used to make life easier, not only for society, but also for his students.
 
This educational civil engineer, who is responsible for information technology implementation in disaster risk management, developed through his research several programs to optimise the three contact sessions DiMTEC students have to attend each year.
 
One of the initiatives implemented by Prof Sakulski and his daughter Teodora, was the recording, editing and compiling of theoretical lessons and making it available to students online. “Students then don’t have the excuse of missing a class. Furthermore, it allows them to rather focus on group work during contact sessions and to discuss problems they encountered with the work,” he says.
 
Students also have access to an early-warning system portal for the prediction of hazards, including droughts, floods, rain and temperature. In the disaster-risk environment, this program is very useful, not only for students, but also for practitioners working with this kind of data on a daily basis. The operational and educational application works in real time – with the click of a mouse students and practitioners have access to information on current weather conditions. Indicators for possible natural disasters are also built into this program. Truly a useful application when you are working in the field of disaster risk management.

Difficult and technical data are presented live, with information that is colourful, interactive, real-time-calculated and audible, thanks to embedded mathematical language. In this way, students can learn, memorise and understand their work better.


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