In 1991 Professor Zdzisław Skupień, the founder and longtime leader of the discrete mathematics research group in Cracow, started a workshop called ‘3in1’ focused on graph theory and combinatorics.

The name ‘3in1’ relates to the properties of the graph logo  which he himself designed.

The 28th edition will take place in Hotel Mercure Raclawice Doslonce from 21st to 23th November 2019.


Invited speakers

Jakub Kozik,  Jagiellonian University, Kraków, Poland

Oleg Pikhurko, University of Warwick, Coventry, United Kingdom

Roman Soták, Pavol Jozef Šafárik University in Košice, Košice, Slovakia



Faculty of Applied Mathematics, AGH University of Science and Technology, Kraków, Poland.


Organizing Committee

Artur Fortuna

Aleksandra Gorzkowska

Andrzej Żak (head)