The governing equations of three dimensional elasticity problems include the six Beltrami-Michell stress compatibility equations, the three differential equations of equilibrium, and the six material constitutive relations; and these are usually solved subject to the boundary conditions. The system of fifteen differential equations is usually difficult to solve, and simplified methods are usual...

This article considers the change in artistic means digital globalised world and development of art actionism as a new inter-genre. The author provides an overview comparison key actions protest events Russia, also focusing on some South Slavic practices. Additionally, analyses incentive impulses, ways realisation, social response to most impressive actions. correlation aesthetic utilitarian co...