Vladimir Petrovich Likhachev | Kharkov State University - Ucrânia
Vladimir Borisovich Shostak | Kiev Institute for Nuclear Research - Ucrânia
Youri Kuznetsov | Kharkov Institute of Physics and Technology - Ucrânia
Valéry gavrykov | kharkov Institute of Physics and technology - Ucrânia
Partial actions and partial representations, cohomology and applications