Hyperbolic groups and nonpositively curved groups, Automorphisms of infinite groups, Fundamental group, presentations, free differential calculus, Fixed points and periodic points of dynamical systems; fixed-point index theory; local dynamics, Fixed points and coincidences in algebraic topology, endomorphisms, automorphisms, Gromov hyperbolic groups, Fundamental groups and their automorphisms (group-theoretic aspects), Reidemeister numbers, groups of exponential growth