The essential aim of this book is to consider a wide set of problems arising in the mathematical modeling of mechanical systems under unilateral constraints. In these investigations elastic and non-elastic deformations, friction and adhesion phenomena are taken into account. All the necessary mathematical tools are given: local boundary value problem formulations, construction of variational equations and inequalities and their transition to minimization problems, existence and uniqueness theorems, and variational transformations (Friedrichs and Young-Fenchel-Moreau) to dual and saddle-point search problems.
The Putin and Bush presidencies, the 9/11 attack, and the war in Iraq have changed the dynamics of Russian-European-US relations and strained the Western alliance. Featuring contributions by leading experts in the field, this work is the first systematic effort to reassess the status of Russia's modernization efforts in this context. Part I examines political, economic, legal, and cultural developments in Russia for evidence of convergence with Western norms. In Part II, the contributors systematically analyze Russia's relations with the European Union, Eastern Europe, Central Asia, and the United States in light of new security concerns and changing economic and power relationships.
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