Janusz Konieczny, professor of mathematics, published four research articles (the last two as a co-author): “Centralizers in the semigroup of injective transformations on an infinite set” in the Bulletin of the Australian Mathematical Society, “Infinite injective transformations whose centralizers have simple structure” in the Central European Journal of Mathematics, “Automorphisms of endomorphism semigroups of reflexive digraphs” in Mathematische Nachrichten, and “Minimal paths in the commuting graphs of semigroups” in the European Journal of Combinatorics. He was an invited speaker at the “Workshop on Universal Algebra, Complexity and Constraint Satisfaction Problems” in Lisbon, Portugal, and gave an invited seminar talk at the Center of Algebra of the University of Lisbon, Portugal.
