2024/08/18 Geodesic invariance and the symmetric product: mechanics, control theory, and geometry, GENTLE Seminar, Universitat Autonònoma de Barcelona (online)
2023/12/11 Variational and nonholonomic mechanics, Deleonfest, ICMAT, Madrid (online)
2023/10/23 Variational and nonholonomic mechanics, Vistas in Control, University of California, Santa Barbara
2023/06/12 Composition, superposition, and ordinary differential equations, BIRS Workshop on Geometry, Topology and Control System Design
2021/07/19 Why is geometric control theory so difficult? SIAM Conference on Control Theory and its Applications (online)
2019/08/02 Nature does not always optimise like we want her to, Department of Electrical and Computer Engineering, University of Waterloo
2019/03/29 Some problems concerning classical mechanics and the calculus of variations, Department of Mathematics and Statistics, University of Ottawa
2019/03/29 How to use topology to make basic ordinary differential equations complicated, and also make hard differential equations easy, Department of Mathematics and Statistics, University of Ottawa
2018/10/20 Characterisation of flows using locally convex topologies, AMS Fall Central Sectional Meeting, University of Michigan
2018/05/07 The exponential map for time-varying and parameter-dependent vector fields, 8th meeting on Systems and Control Theory, University of Toronto
2016/06/26 Tautological control systems, Geometric Methods in Mechanics and Control With Applications, Canadian Mathematical Society Summer Meeting, Edmonton, AB
2016/05/09 Control theory may be different than you think it is, Keynote address, CDSR'16, University of Ottawa
2015/08/24 Tautological control systems, Nonlinear Control and Geometry, Banach Center Conference, Będlewo, Poland
2015/02/27 Tautological control systems, Informal Systems Seminar, McGill University
2014/12/17 Tautological control systems, 53rd IEEE Conference on Decision and Control, Los Angeles
2013/09/06 Mathematical models for control systems, Workshop on Control and Observation of Nonlinear Control Systems with Application to Medicine, University of Hawaii
2013/05/03 Some interesting things about real analyticity, UCSB CCDC Workshop on Vistas in Control, University of California, Santa Barbara
2012/12/13 Fundamental problems of geometric control theory, 51st IEEE Conference on Decision and Control, Maui
2012/05/24 Fundamental problems in geometric control theory, Colloquium, Department of Mathematics, Universidad Carlos III de Madrid
2012/05/07 Why are the theories of controllability and stabilisability so different, and should they be? 5th Biennial Meeting on Systems and Control Theory
2010/11/01 Differential geometric methods for the control of mechanical systems, CRM Applied Mathematics Seminar
2009/02/19 Differential geometry, control theory, and mechanics, Department of Mechanical Engineering, Johns Hopkins University
2008/12/09 Jet bundles and algebro-geometric characterisations for controllability of affine systems, 47th IEEE Conference on Decision and Control, Cancun
2008/06/05 The local structure of affine systems, AMS-SBM Joint International Meeting, IMPA, Rio de Janeiro, Brazil
2008/05/08 Controllability: A brief revisionist tutorial, Meeting on Nonlinear Control Theory and its Applications, Waterloo ON
2008/04/03 Mathematics from applied mathematics, Math Club
2007/08/13 Some results on energy shaping feedback, Geometric Mechanics: Continuous and Discrete, Finite and Infinite Dimensional, Banff International Research Station
2006/12/14 An example with interesting controllability and stabilisation properties, 45th IEEE Conference on Decision and Control, San Diego
2006/12/14 Potential energy shaping after kinetic energy shaping, 45th IEEE Conference on Decision and Control, San Diego
2006/05/04 Energy shaping, Meeting on Nonlinear Control Theory and its Applications, Toronto ON
2006/01/15 Control theory without controls, AMS Joint Mathematics Meeting, San Antonio
2005/12/14 Control of mechanical systems, Department of Mathematics, University of Hawaii
2005/03/24 Problems and partial results in energy shaping, Laboratoire des Signaux et Systémes, Centre National de la Recherche Scientifique, Supélec
2005/03/16 Problems and challenges in control theory for mechanical systems, Facultat de Matemàtiques i Estadística, Universitat Politècnica de Catalunya
2005/01/20 Removing ``control'' from control theory, Seminari del grup de recerca sobre Geometria diferencial, sistemes dinômics i aplicacions, Depto. Matemática Aplicada IV, Universidad Politécnica de Cataluña
2004/12/17 Notes on energy shaping, 43rd IEEE Conference on Decision and Control, Bahamas
2004/05/06 Musings on controllability and stabilisability, Meeting on Nonlinear Control Theory and its Applications, Kingston, ON
2003/12/04 Jacobian linearisation in a geometric setting, 42nd IEEE Conference on Decision and Control, Maui
2003/10/04 Affine connection control systems with interesting controllability properties, 5th CSL Workshop on Future Directions in Nonlinear Control of Mechanical Systems, University of Illinois, Urbana-Champaign
2003/06/19 The role of controllability in motion planning for affine connection control systems, First Joint AMS/RSME Meeting, Seville, Spain
2003/05/16 From controllability to motion planning for mechanical systems, 3rd International DCDIS Conference on Engineering Applications and Computational Algorithms, Guelph, ON
2003/04/25 Some mechanical systems are difficult to control, Mathematics Department, Arizona State University
2002/12/12 Geometric local controllability: second-order conditions, 41th IEEE Conference on Decision and Control, Las Vegas, NV
2002/08/15 The category of affine connection control systems, MTNS'02, South Bend, IN
2002/08/15 Controllable kinematic reductions for mechanical systems: concepts, computational tools, and examples, MTNS'02, South Bend, IN
2002/08/12 What is the characteristic polynomial of a signal flow graph? MTNS'02, South Bend, IN
2002/05/27 Control theory for mechanical systems, The Fourth International Conference on Dynamical Systems and Differential Equations, University of North Carolina at Wilmington
2001/12/14 Geometric first-order controllability conditions for affine connection control systems, 40th IEEE Conference on Decision and Control, Orlando, FL
2001/11/07 Control for mechanical systems, Coleman-Ellis lecture, Department of Mathematics & Statistics, Queen's University
2001/10/26 Control theory for mechanical systems, Department of Applied Mathematics, University of Waterloo
2001/07/11 Optimal control for a simplified hovercraft model, SIAM Conference on Control and its Applications, San Diego, CA
2001/07/11 Sharp first-order controllability conditions for affine connection control systems, SIAM Conference on Control and its Applications, San Diego, CA
2001/07/11 Generalised splines via the maximum principle, SIAM Conference on Control and its Applications, San Diego, CA
2001/02/02 Geometric low-order controllability conditions, Department of Mathematics & Statistics, Queen's University
2000/12/15 The category of affine connection control systems, 39th IEEE Conference on Decision and Control, Sydney, Australia
2000/11/04 Applications of differential geometry to mechanical control systems, Meeting of the Seaway Section of the Mathematics Association of America, SUNY Fredonia, New York
2000/10/18 Control theory for mechanical systems, Department of Mechanical Engineering, Carnegie Mellon University
2000/07/27 Optimal control for affine connection control systems, Workshop on Mathematical Control Theory and Robotics, SISSA, Trieste, Italy
2000/06/13 Affine connection control systems, Math 2000, Canadian Mathematical Society meeting at McMaster University, Hamilton, Ontario
2000/03/18 Affine connection control systems, IFAC Workshop on Lagrangian and Hamiltonian Methods for Nonlinear Control, Princeton, NJ
1999/12/07 When is a mechanical control system kinematic? 38th IEEE Conference on Decision and Control, Phoenix, AZ
1999/07/30 Optimal control of affine connection control systems, Workshop on Geometric and Multibody Mechanics: Nonlinear Dynamics and Control, Mathematisches Forschungsinstitut Oberwolfach
1998/12/03 Control theory for simple mechanical control systems, Coordinated Science Laboratory, University of Illinois, Urbana-Champaign
1998/11/06 Mechanical systems on homogeneous spaces, Department of Mathematics & Statistics, Queen's University
1998/08/27 Controllability of simple mechanical control systems, 13th International Workshop on Differential Geometric Methods in Theoretical Mechanics, Alden Biesen, Belgium
1998/07/17 Mechanical systems on homogeneous spaces, University of Warwick, Workshop on Hamiltonian Systems
1998/03/10 Controllability of simple mechanical control systems, Queen's University Department of Mathematics and Statistics
1997/09/08 Lagrangian reduction for simple mechanical systems with constant orbit type, Control and Dynamical Systems Seminar, California Institute of Technology
1997/08/28 Equations of motion for nonholonomic systems, Invited talk, Workshop on Non-holonomic Constraints in Dynamics, The University of Calgary
1997/07/01 Local configuration controllability for a class of mechanical systems with a single input, European Control Conference, Brussels, Belgium
1997/02/14 Control theory for mechanical systems, Simon Frasier University Department of Mathematics
1997/01/20 Mechanical systems with symmetry (in three minutes), MIR@W Brown Bag Lunch
1996/10/07 The role of affine connections in control theory for mechanical systems, University of Warwick Department of Mathematics
1996/08/28 Controllability of Lagrangian systems, University of New Brunswick Department of Mathematics and Statistics
1996/06/16 Controllability of Lagrangian systems, MTNS '96
1996/05/30 Control of Lagrangian systems, Ohio University Department of Mechanical Engineering
1996/05/06 Affine connections and constraints, CDS 241 Seminar, California Institute of Technology
1996/04/22 The role of affine connections in mechanics and control, Control and Dynamical Systems Seminar
1996/02/20 The symmetric product in geometry, mechanics, and control theory, New Mexico State University Department of Mathematical Sciences
1995/12/15 Controllability of simple mechanical control systems, 34th IEEE Conference on Decision and Control
1995/07/27 Controllability of Lagrangian control systems, AFOSR kick off meeting
1995/06/09 Controllability of Lagrangian control systems, Department of Mechanical Engineering, University of Victoria