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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

SmartDrive devices give UFS wheelchair users more independence
2017-12-01

 Description: Cuads Tags: SmartDrive Power Assist, accessibility, Martie Miranda, CUADS, wheelchair users 

From the left, are: David Mashape; Martie Miranda, Head of the
Center for Universal Access and Disability Support at the UFS;
and Lawrence Qamba, celebrating the recent acquisition
of two SmartDrive Power Assist devices.
Photo: Johan Roux

Students who make use of wheelchairs at the University of the Free State (UFS) will now be able to move around campus more independently than before. This is thanks to two SmartDrive Power Assist devices acquired by the university.

Accessibility is very important to the institution and with these devices clipping onto a manual wheelchair to make it motorised, students will not have to ask for help that often. It will assist them in overcoming obstacles they face every day.

Different surfaces pose different challenges 
According to Martie Miranda, Head of the Center for Universal Access and Disability Support (CUADS), one of the most important advantages of the SmartDrive machines is that it enhances the independence of students. The devices were bought with funds received from the Department of Higher Education and Training specifically allocated for accessibility and infrastructure.
 
“While the UFS is addressing inaccessibility on its campuses, which will take time, this will help to motorise wheelchairs for wheelchair users to move around more easily. Students can now move around independently without necessarily asking for help, for example, to get up very steep ramps.” Miranda says some surfaces, such as grass and gravel, has its own unique challenges for wheelchair users.

A few years coming

The SmartDrive devices are operated by a Bluetooth watch. By tapping twice on the chair or clapping twice, the motor propels the wheelchair forward and stops when tapped twice, while also braking with one’s hands. The speed can also be controlled by the user. The machines use rechargeable batteries, with a fully charged battery lasting up to 15 hours.
 
Acquiring the devices was a process of a few years, and CUADS is happy to finally employ them to the benefit of their students. Miranda says the determination and support of Prof Nicky Morgan, Vice-Rector: Operations, and the assistance of Nico Janse van Rensburg, Senior Director: Top Management, were instrumental in buying the devices.

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