Petr Simon (1944-2018)

With profound sorrow we inform the community that Prof. Petr Simon passed away on April 14th, 2018.

Petr Simon completed his studies at the Faculty of Mathematics and Physics of the Charles University in Prague in 1967 and joined the faculty of the university soon thereafter to stay there as a professor and researcher for the rest of his life.

His main research interests lied in Topology following in the footsteps of a strong school of Czech topologists such as Eduard Čech, Zdeněk Frolík and Miroslav Katětov. He also actively participated in the emerging Prague Set Theory Seminar of Petr Vopěnka. Eventually, he would, together with Bohuslav Balcar, create and lead the influential Seminář z počtů (Seminar on Reckoning) which  focused on infinite combinatorics and its applications which ranged from Set theory, Theory of Boolean algebras to Topology, measure theory, and Real and Functional analysis. Together with Balcar he also continued the tradition of Frolík and Čech by organizing the yearly Winter School in Abstract Analysis and every five years the Prague Topological Symposium. He was also involved in the INFTY network project in 2009–2014.

He has published more than 70 research articles, was a member of the editorial board of Topology and its Applications, and the managing editor of Acta Universitatis Carolinae. Mathematica et Physica, participated in the elaboration of the Handbook of Boolean Algebras, and Recent Progress in General Topology III.

His main research contributions dealt with applications of basic combinatorial objects such as almost disjoint and independent families, and ultrafilters (“the most beautiful things there are”, as he used to say) to Topology and the Theory of Boolean algebras. 

Michael Hrusak

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