Yuriy Reznikov: Memories of Liquid Crystal Society Commonwealth & MRSU group R&D in area of Yuriy Reznikov's activity

One chapter of the paper is devoted to memories of two members of Board of LC Society Commonwealth on Yuriy Reznikov. Another chapter is a brief description of theoretical models developed in the MRSU group under leadership of Professor Artem Dadivanyan (†2017) in area of the LC orientation and photo-induced effects are presented. Many of these R&D were initiated by Yuriy Reznikov with his colleagues from many countries.