Includes bibliographical references.

Remembering the mathematics of Robert Brown Gardner / George R. Wilkens -- A Hamiltonian approach to strong minima in optimal control / Andrei Agrachev, Gianna Stefani, and Pierluigi Zezza -- The Heisenberg group H3 in terms of the orthonormal frame bundle O(R2) and the control of variation of the Heisenberg diffusion / Helene Airault -- Linear control systems on Lie groups and controllability / Victor Ayala and Juan Tirao -- Real analytic geometry and local observability / Zbigniew Bartosiewicz -- External dynamic feedback equivalence of observable discrete-time control systems / Ewa Pawuszewicz and Zbigniew Bartosiewicz -- Good needle-like variations / R.M. Bianchini -- Representations of Dirac structures on vector spaces and nonlinear L-C circuits / Anthony M. Bloch and Peter E. Crouch -- Non integrable geodesics in SR-Martinet geometry / Bernard Bonnard, Monique Chyba and Ivan Kupka -- Singular extremals of order 3 and chattering / V.F. Borisov -- Some open problems in control theory / Jean-Michel Coron -- Quadratic order conditions of a local minimum for singular extremals in a general optimal control problem / A.V. Dmitruk -- Some solvable infinite time horizon stochastic control problems in hyperbolic three space / T.E. Duncan -- Geometric control and Lie semigroup theory / Jimmie D. Lawson -- Analysis of abnormal extremals in optimal control / Urszula Ledzewicz and Heinz SchÌattler -- Rolling bodies with regular surface: the holonomic case / Alessia Marigo and Antonio Bicchi -- On degenerate Monge-Ampere equations / Viswanath Ramakrishna -- Lie brackets and impulsive controls: an unavoidable connection / Franco Rampazzo -- Survey on controllability of invariant systems on solvable Lie groups / Yuri L. Sachkov -- Centro-affine geometry in the plane and feedback invariants of two-state scalar control systems / George R. Wilkens -- On hypersurfaces satisfying a basic equality / Jie Yang .