2016 
Pinning Down versus Density

Twelfth Symposium on General Topology and its Relations to Modern Analysis and Algebra, Prague, Czech Republik 
2016 
Pinning Down versus Density

Novi Sad Conference in Set Theory and General Topology, riški Venac, Fruška Gora,, Serbia 
2014 
Monochromatic paths and path squares in infinite graphs

Set Theory Workshop in Freiburg, Germany, Freiburg 
2014 
On properties of families of sets, 1

7th Young Set Theory Workshop, Bedlewo, Poland 

On properties of families of sets, 2



On properties of families of sets, 3



On properties of families of sets, 4


2013 
On properties of families of sets

Erdős Centennial, Budapest, Hungary . 20130703, Budapest, Hungary 
2012 
Variations of Separability

Winter School in Abstract Analysis 2012 section Set theory & Topology, , . 20120131, Heinice, Czech Republic 
2011 
Cardinal sequences of scattered spaces

Eleventh Symposium on General Topology and its Relations to Modern Analysis and Algebra, Prague, Czech Republik 