# Recent and upcoming talks by Jarosław Swaczyna

## Jarosław Swaczyna: Haar-small sets

Tuesday, May 23, 2017, 17:15 Wrocław University of Technology, 215 D-1 Speaker: Jarosław Swaczyna (Lodz University of Technology) Title: Haar-small sets Abstract: In locally compact Polish groups there is a very natural $\sigma$-ideal of null sets with respect to Haar-measure. continue reading…

## Jarosław Swaczyna: Generalized densities of subsets of natural numbers and associated ideals

Tuesday, May 19, 2015, 17:15 Wrocław University of Technology, 215 D-1 Speaker: Jarosław Swaczyna (Technical University of Łódź) Title: Generalized densities of subsets of natural numbers and associated ideals Abstract: Let g be a function from natural numbers to non-negative reals. continue reading…