Mathematics of electoral systems

Conversatory class
Speaker and affiliation: 
Dr. Stanisław Bajtlik, Nicolaus Copernicus Astronomical Center in Warsaw (Polish Academy of Sciences)
Thu, 2015-04-09 09:30 to 10:30
Conference room in Department of Education and Trainings building in Świerk.

How the cast votes should be translated into mandates is a central issue of any electoral (voting) system applied to elect members of parliaments, local authority bodies, supervisory boards etc. There is no single answer because of numerous political, moral, social etc. circumstances. However, some issues of purely mathematical (or rather statistical) nature are also involved. How to round numbers of cast votes? What to do with votes cast on parties that have not passed the defined electoral threshold? Even in case of single-seat constituency voting systems (recently a hot topic in Poland) winners may in practice be elected very differently. The lecture will be devoted exclusively to technical aspects of voting.

Professor Ludwik Dobrzyński

Bus to Świerk leaves at 10.15 am from entrance gate to 69, Hoża str. in Warsaw.