The study analyses the concept of irregularity and its theoretical and legal manifestations. Irregularity in Hungarian law is in use in more than one sense; one of these is based on the regulations of the European Union. The EU’s regulation of irregularity and domestic legal practice contain...

In this paper we introduce the concept of s-monotone index selection rule for linear programming problems. We show that several known anti-cycling pivot rules like the minimal index, Last-In–First-Out and the most-often-selected-variable pivot rules are s-monotone index selection rules....

This short discussion paper comments on Francisco Santos’ excellent review paper Recent Progress on the Combinatorial Diameter of Polytopes and Simplicial Complexes. We provide some notes on a few closely related topics that were not covered in the survey paper, such as: some relaxed version...