Our lab director, Dr. Roland Molontay, will be giving a public lecture at this year's BME Researchers' Night, on Friday, 26 September 2026, from 17:30 to 19:00, in room F29 of BME Building F. The lecture will be delivered in Hungarian.

In his talk, "The Mathematics of Voting and Elections," Roland will use surprising examples to show how mathematics can help us understand collective decision-making and electoral systems. Can we make fair decisions when aggregating the opinions of many people? Does the candidate with the most votes always win? And how can parliamentary seats be allocated fairly?

The lecture will highlight how the same votes can lead to very different outcomes depending on the rules applied. Attendees will be introduced to Arrow's impossibility theorem — one of the most celebrated results in voting theory — as well as the mathematical methods used to allocate parliamentary seats. By the end of the evening, the audience may arrive at a rather thought-provoking conclusion: perhaps no perfectly fair electoral system exists.

Everyone is warmly welcome to an evening where mathematics meets one of society's most fundamental questions: how should we make collective decisions?