2009-2010 :Collaboration with Prof. Michael Drmota (University TU-Wien,
Vienna, Austria) on uniform distribution on fractals and on discrepancy
of generalized Kakutani sequences.
2010: Collaboration with Prof. Peter M. Gruber (University TU-Wien,
Vienna, Austria) on Convex Geometry
2007-2010: Collaboration with Prof. Nikolaos Papanastassiou (University
of Athens, Greece) on Limit theorems in l-groups and applications.
2005-2010: Coollaboration with Proff. Beloslav Riecan and Marta Vrabelova
(University "Matej Bel" of Banska Bystrica, Slovakia and University
of Nitra, Slovakia) on Kurzweil-Henstock and Choquet-type integrals
in Riesz spaces and metric semigroups and applications.
2005-2010: Collaboration with Prof. Valentin A. Skvortsov (University
of Moscow and University "Casimir the Great" of Bydgoszcz,
Poland) on Different types of abstract integrals in Riesz spaces and
applications to Fourier Analysis.
2005-2010: Collaboration with Proff. Butzer and Stens on signal analysis
(Polythecnic of Aachen - Germany)
Collaboration with Prof. Lubica Hola (Slovak Academy of Sciences, Bratislava,
Slovakia) on cardinal invariants of hyperspaces
2009: Collaboration with Prof Maria Moszynska (University of Warsaw
- Polonia) on Geometric Tomography, in particular on recostruction of
three dimensional convex bodies by i-chord functions
2004-2009: Collaboration with Prof. Jan Haluska (University of Kosice,
Slovakia) on Fubini theorems in bornological spaces and applications.
Collaboration with David Buhagiar and Emmanuel Chetcuti (University
of Malta) on lattices of subspaces of pre-Hilbert spaces
Collaboration with Ji-Cheng Hou (Dalian Nationalities University, Liaoning,
China) on hyperspace topologies
Collaboration with Prof. Pavel Ptak (Technical University of Prague,
Prague, Czech Republic) on additive functions on orthomodular structures.