Ukrainian Academy of Printing : Head of Laboratory, September 1991 - September 1995
Pidstryhach Institute for Applied Problems of Mechanics and Mathematics of National Academy of Sciences of Ukraine : Mathematician of the Department of Algebra, March 1996 - May 1997
Pidstryhach Institute for Applied Problems of Mechanics and Mathematics of National Academy of Sciences of Ukraine : Junior Researcher of the Department of Algebra, June 1997 - April 1999
Pidstryhach Institute for Applied Problems of Mechanics and Mathematics of National Academy of Sciences of Ukraine : Researcher of the Department of Algebra, April 1997 - November 2001
Pidstryhach Institute for Applied Problems of Mechanics and Mathematics of National Academy of Sciences of Ukraine : Senior Researcher of the Department of Algebra, December 2001 - August 2005
Ivan Franko Lviv National University : Associate Professor of the Department of Mecahnics and Mathematics, September 2003 - present
Lviv Fire and Technical College : Assistant of Professor, September 1995 - March 1996
Ivan Franko Lviv National University : Associate Professor of the Department of Mecahnics and Mathematicis, September 2003 - present
Pidstryhach Institute for Applied Problems of Mechanics and Mathematics of National Academy of Sciences of Ukraine : Adviser of Ph.D. Students, December 2003 - November 2006
Basic Courses
Analytic Geometry.
Differential Geometry.
Differential Geometry and Topology.
Foundations of Mathematics.
Special Courses
Algebraic Theory of Semigroups.
Theory of Topological Semigroups.
Inverse Semigroups.
Theory of Semitopological Semigroups.
Partially Ordered Topological Spaces and Topological Semilattices.
I. I. Guran, and O. V. Gutik,Mathematics for Economists. For Students of Departments of International Relations. Lecture Notes. Znannya, Kyiv, 2008, 388 pp. (in Ukrainian)
I. Guran, and O. Gutik, Analytic Geometry, (in Ukrainian) (in preparation).
I. Guran, and O. Gutik, Foundations of the Theory of Topological Semigroups, (in Ukrainian) (in preparation).
International Conference "Geometric Topology: Infinite-Dimensional Topology, Absolute Extensors, Applications". Lviv, May 26-30, 2004. Abstracts. Lviv (2004).
Second Summer School in Algebra and Topology. Dolyna, August 2-14, 2004. Programs of Invited Lectures and Abstracts of Research reports. Lviv-Dolyna (2004).
Third Summer School in Algebra, Analysis and Topology. Kozyova, August 9-20, 2005. Invited Lectures and Abstracts of Research Reports. Lviv (2005).
Fourth Summer School ''Algebra, Topology, Functional and Stochastic Analysis''. Kozyova, July 17–29, 2006. Invited Lectures and Abstracts of Research Reports. Lviv (2006).
International Conference "Analysis and Topology".
Lviv, June 2-7, 2008. Abstracts. Lviv (2008).
International Conference on Functional Analysis Dedicated to 90th Anniversary of V. E. Lyantse. L'viv, Ukraine, November 17-21, 2010. Abstracts of Reports. Lviv (2010).
International Conference dedicated to the 120th anniversary of Stefan Banach. Lviv, September 17-21, 2012. Abstracts of Reports. Lviv (2012).
