2018. October 20., Saturday
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Chaos Kept at Bay is also Ill People’s Hope

If disease is chaos, the mathematical methods of resolving irregular processes within the body support the healing process. Two mathematicians of the Bolyai Institute, University of Szeged (SZTE) are able to tame chaos.


“Some behaviours determined by simple rules, which nevertheless appear to be complex, irregular and random may occur in many areas, such as in the atmosphere, in the flow of liquids, but even in the movements of certain heavenly bodies as well as in our bodies: a behaviour that we call chaotic dynamics. A more thorough understanding of chaos has been the subject of intensive mathematical research since the second half of the last century,” started his explanation Gergely Röst, mathematician.


Gergely Röst, an associate professor at the Bolyai Institute, Faculty of Science and Informatics, University of Szeged, who currently works at Oxford University, researches interdisciplinary life and health sciences based on mathematical methods. He published an article with Gábor Kiss, his colleague from Szeged, who returned from Bristol University in 2014, in an interdisciplinary journal Chaos in the beginning of 2018, which answers the question of how chaos can be kept at bay.


“The Mackey-Glass equation presented in 1977 is used for the mathematical description of physiological regulatory processes, which also reveals the chaotic behaviour behind various bodily abnormalities. Various variants of the equation have successfully been used for different purposes, among others to better understand and treat various types of abnormalities of the hematopoietic system, the cardiovascular system and the nervous system. This is one of the key elements of more complex models in several cases,” explains Gergely Röst.

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In many cases, chaotic behaviour is undesirable, so it is important to understand ways to tame the chaos. The gist of the Röst-Kiss idea is to force all solutions into a special domain of the phase space where chaotic behaviour cannot occur. This way, they have succeeded in transforming chaotic behaviour into regular periodic motion or equilibrium with several different mechanisms.


“If the parameters that cause irregularities are changed in the right way, the whole system can be made regular. This can also help us understand and treat abnormal changes in the body,” describes Gábor Kiss the practical importance of the mathematical method.


Text: Ilona Újszászi
Photo: SZEM

SZTE Experience


SantiagoSantiago Vallejo - Faculty of Law and Political Sciences

I’m from Ecuador and a Ph.D. student from the Stipendium Hungaricum scholarship program. I first heard about the University of Szeged on the internet. The general study environment is nice and student life in the city is lovely. With my program and the academic system, I can control my time which is a plus. The city is very affordable, and I live in the city center. One of my favorite extra-curricular activities is the Hungarian cultural programs. I have so many favorite spots, but parks are top on the list. The professors and staffs are very approachable. The mentors and classmates also did an excellent job to explore and know the city better. I hope to continue my career as a professor, and I would recommend the university to friends because it is, in general, a beautiful place.


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I’m a Ph.D. student from Indonesia and a Stipendium Hungaricum scholarship student. I first heard about the University of Szeged from the Tempus Foundation university list with excellent program descriptions, and it caught my eyes. My student life has been a pleasant one because of the beautiful environment, and TIK library facility. The teachers and staffs are accommodating, and my mentors and classmates also contributed to exploring the city with pleasant memories. The city is very affordable, and I live in a shared flat very close to the city center. In my free time, I engage in sporting activities or watch movies. My favorite spot is the Dugonics square, but my best attraction is the Tisza River. The University of Szeged is a beautiful experience for me, and I will recommend it to my friends. I am happy to be part of the University of Szeged.

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