My present and former collaborators in research (alphabetically):

• Elizabeth Billington (University of Queensland, Australia)
• Sylwia Cichacz (AGH University of Science and Technology, Kraków, Poland)
• Italo Jose Dejter (University of Puerto Rico)
• Antoine Deza (McMaster University, Hamilton, Canada)
• Frantisek Franek (McMaster University, Hamilton, Canada)
• Dalibor Fronček (University of Minnesota Duluth, USA)
• Agnieszka Görlich (AGH University of Science and Technology, Kraków, Poland)
• Pavol Gvozdjak (Simon Fraser University, Burnaby, Canada)
• Dean Hoffman (Auburn University, USA)
• Peter Horák (University of Washington, Tacoma, USA)
• William Hua (McMaster University, Hamilton, Canada)
• Jaroslav Ivančo (Safarik University, Kosice, Slovakia)
• Mirko Horňák (Safarik University, Kosice, Slovakia)
• Rafał Kalinowski (AGH University of Science and Technology, Kraków, Poland)
• Mateusz Kamyczura (AGH University of Science and Technology, Kraków, Poland)
• Mikhail Klin (Ben-Gurion University of the Negev, Israel)
• Petr Kovář (VSB - Technical University Ostrava, Czech Republic)
• Jan Kratochvil (Charles University, Prague, Czech Republic)
• Michael Kubesa , (VSB - Technical University Ostrava, Czech Republic)
• Selda Kuçukçifçi (Koc University, Istanbul, Turkey)
• Curt Lindner (Auburn University, USA)
• Giovanni Lo Faro (University of Messina, Italy)
• Zbigniew Lonc (Warsaw University of Technology, Poland)
• Eric Mendelsohn (University of Toronto, Canada)
• Roman Nedela (Slovak Academy of Sciences)
• Sibel Özkan (Gebze Technical University, Turkey)
• Anita Pasotti (University of Brescia, Italy)
• Marco Antonio Pellegrini (Catholic University of the Sacred Heart, Brescia, Italy)
• Carl Pettis (Alabama State University, USA)
• Monika Pilśniak (AGH University of Science and Technology, Kraków, Poland)
• Jakub Przybyło (AGH University of Science and Technology, Kraków, Poland)
• Sven Reichard (Dresden University of Technology, Germany)
• Chris Rodger (Auburn University, USA)
• Alexander Rosa (McMaster University, Hamilton, Canada)
• Beatrice Ruini (University of Modena and Reggio Emilia)
• Jana Siagiová (Slovak University of Technology, Bratislava, Slovakia)
• Martin Škoviera (Comenius University, Bratislava, Slovakia)
• Zdzisław Skupień (AGH University of Science and Technology, Kraków, Poland)
• Antonella Tripodi (University of Messina, Italy)
• Magdalena Tyniec (AGH University of Science and Technology, Krak?, Poland)
• Mariusz Woźniak (AGH University of Science and Technology, Kraków, Poland)
• Irmina Zioło (AGH University of Science and Technology, Kraków, Poland)