Table of Contents: “...1. Elements of General Theory of Groups -- 1 Basic notions -- 2 Topological groups -- 3 Particular Abelian groups -- 2. Lie Groups -- 1 The SO(3) group -- 2 The SU(2) group -- 3 The SU(3) and GL(n, ?) groups -- 4 The Lorentz group -- 3. Symmetry Groups...”

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Table of Contents: “... and Euclidean Quantum Gravity ¡ª Analytical and Numerical Results -- 1 Introduction -- 2 Lorentzian gravity in 2d -- 3 Topology changes and Euclidean quantum gravity -- 4 Euclidean quantum gravity -- 5 Numerical setup -- 6 Dynamically triangulated quantum gravity...”

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Table of Contents: “... of Vortex Flows -- Topological Transitions in Hele-Shaw Flow -- II. Singularities in Optics and Plasmas -- Separatrices and Singularities -- Nonlinear Dynamics of Ultra-Cold Gas -- The Interaction Representation for Nonlinear Schrodinger Equation Penleve Problem...”

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