Andrew D. Lewis's Talks
The listing is roughly in reverse chronological order.
The "Last Updated" tag means the last time the
pdf files were updated, not the TeX files.
- 2024a
- Title: Geodesic invariance and the symmetric product: mechanics, control
theory, and geometry
Detail: GENTLE Seminar, Universitat Autonònoma de Barcelona (online), 2024/08/18
- 2023c
- Title: Variational and nonholonomic mechanics
Detail: Deleonfast, ICMAT, Madrid (online), 2023/12/11
- 2023b
- Title: Variational and nonholonomic mechanics
Detail: Vistas in Control, University of California, Santa Barbara, 2023/10/23
- 2023a
- Title: Composition, superposition, and ordinary differential equations
Detail: BIRS Workshop on Geometry, Topology and Control System Design, 2023/06/12
- 2021a
- Title: Why is geometric control theory so difficult?
Detail: SIAM Conference on Control Theory and its Applications (online),
2021/07/19
- 2019c
- Title: Nature does not always optimise like we want her to
Detail: Department of Electrical and Computer Engineering, University of Waterloo, 2019/08/02
- 2019b
- Title: Some problems concerning classical mechanics and the calculus of variations
Detail: Department of Mathematics and Statistics, University of Ottawa, 2019/03/29
- 2019a
- Title: How to use topology to make basic ordinary differential equations
complicated, and also make hard differential equations easy
Detail: Department of Mathematics and Statistics, University of Ottawa, 2019/03/29
- 2018b
- Title: Characterisation of flows using locally convex topologies
Detail: AMS Fall Central Sectional Meeting, University of Michigan, 2018/10/20
- 2018a
- Title: The exponential map for time-varying and parameter-dependent vector fields
Detail: 8th meeting on Systems and Control Theory, University of Toronto, 2018/05/07
- 2016b
- Title: Tautological control systems
Detail: Geometric Methods in Mechanics and Control With Applications,
Canadian Mathematical Society Summer Meeting, Edmonton, AB, 2016/06/26
- 2016a
- Title: Control theory may be different than you think it is
Detail: Keynote address, CDSR'16, University of Ottawa, 2016/05/09
- 2015b
- Title: Tautological control systems
Detail: Nonlinear Control and Geometry, Banach Center Conference,
Będlewo, Poland, 2015/08/24
- 2015a
- Title: Tautological control systems
Detail: Informal Systems Seminar, McGill University, 2015/02/27
- 2014a
- Title: Tautological control systems
Detail: 53rd IEEE Conference on Decision and Control, Los Angeles, 2014/12/17
- 2013b
- Title: Mathematical models for control systems
Detail: Workshop on Control and Observation of Nonlinear Control Systems with
Application to Medicine, University of Hawaii, 2013/09/06
- 2013a
- Title: Some interesting things about real analyticity
Detail: UCSB CCDC Workshop on Vistas in Control (aka, A Birthday Party for Richard Murray), University of California, Santa Barbara, 2013/05/03
- 2012c
- Title: Fundamental problems of geometric control theory
Detail: 51st IEEE Conference on Decision and Control, Maui,
2012/12/13
- 2012b
- Title: Fundamental problems in geometric control theory
Detail: Colloquium, Department of Mathematics, Universidad Carlos III de Madrid,
2012/05/24
- 2012a
- Title: Why are the theories of controllability and stabilisability so different, and
should they be?
Detail: 5th Biennial Meeting on Systems and Control Theory, 2012/05/07
- 2010a
- Title: Differential geometric methods for the control of mechanical
systems
Detail: CRM Applied Mathematics Seminar, 2010/11/01
- 2009a
- Title: Differential geometry, control theory, and mechanics
Detail: Department of Mechanical Engineering, Johns Hopkins University,
2009/02/19
- 2008d
- Title: Jet bundles and algebro-geometric characterisations for
controllability of affine systems
Detail: 47th IEEE Conference on Decision and Control, Cancun,
2008/12/09
- 2008c
- Title: The local structure of affine systems
Detail: AMS-SBM Joint International Meeting, IMPA, Rio de Janeiro, Brazil,
2008/06/05
- 2008b
- Title: Controllability: A brief revisionist tutorial
Detail: Meeting on Nonlinear Control Theory and its Applications, Waterloo
ON, 2008/05/08
- 2008a
- Title: Mathematics from applied mathematics
Detail: Math Club, 2008/04/03
- 2007a
- Title: Some results on energy shaping feedback
Detail: Geometric Mechanics: Continuous and Discrete, Finite and Infinite
Dimensional, Banff International Research Station, 2007/08/13
- 2006d
- Title: An example with interesting controllability and stabilisation
properties
Detail: 45th IEEE Conference on Decision and Control, San Diego,
2006/12/14
- 2006c
- Title: Potential energy shaping after kinetic energy shaping
Detail: 45th IEEE Conference on Decision and Control, San Diego,
2006/12/14
- 2006b
- Title: Energy shaping
Detail: Meeting on Nonlinear Control Theory and its Applications, Toronto
ON, 2006/05/04
- 2006a
- Title: Control theory without controls
Detail: AMS Joint Mathematics Meeting, San Antonio, 2006/01/15
- 2005d
- Title: Control of mechanical systems
Detail: Department of Mathematics, University of Hawaii, 2005/12/14
- 2005c
- Title: Problems and partial results in energy shaping
Detail: Laboratoire des Signaux et Systémes, Centre National de la
Recherche Scientifique, Supélec, 2005/03/24
- 2005b
- Title: Problems and challenges in control theory for mechanical systems
Detail: Facultat de Matemàtiques i Estadística, Universitat
Politècnica de Catalunya, 2005/03/16
- 2005a
- Title: Removing ``control'' from control theory
Detail: Seminari del grup de recerca sobre Geometria diferencial, sistemes
dinômics i aplicacions, Depto. Matemática Aplicada IV, Universidad
Politécnica de Cataluña, 2005/01/20
- 2004b
- Title: Notes on energy shaping
Detail: 43rd IEEE Conference on Decision and Control, Bahamas,
2004/12/17
- 2004a
- Title: Musings on controllability and stabilisability
Detail: Meeting on Nonlinear Control Theory and its Applications, Kingston,
ON, 2004/05/06
- 2003e
- Title: Jacobian linearisation in a geometric setting
Detail: 42nd IEEE Conference on Decision and Control, Maui, 2003/12/04
- 2003d
- Title: Affine connection control systems with interesting controllability
properties
Detail: 5th CSL Workshop on Future Directions in Nonlinear Control of
Mechanical Systems, University of Illinois, Urbana-Champaign,
2003/10/04
- 2003c
- Title: The role of controllability in motion planning for affine connection
control systems
Detail: First Joint AMS/RSME Meeting, Seville, Spain, 2003/06/19
- 2003b
- Title: From controllability to motion planning for mechanical systems
Detail: 3rd International DCDIS Conference on Engineering Applications and
Computational Algorithms, Guelph, ON, 2003/05/16
- 2003a
- Title: Some mechanical systems are difficult to control
Detail: Mathematics Department, Arizona State University,
2003/04/25
- 2002e
- Title: Geometric local controllability: second-order conditions
Detail: 41th IEEE Conference on Decision and Control, Las Vegas, NV,
2002/12/12
- 2002d
- Title: The category of affine connection control systems
Detail: MTNS'02, South Bend, IN, 2002/08/15
- 2002c
- Title: Controllable kinematic reductions for mechanical systems: concepts,
computational tools, and examples
Detail: MTNS'02, South Bend, IN, 2002/08/15
- 2002b
- Title: What is the characteristic polynomial of a signal flow graph?
Detail: MTNS'02, South Bend, IN, 2002/08/12
- 2002a
- Title: Control theory for mechanical systems
Detail: The Fourth International Conference on Dynamical Systems and
Differential Equations, University of North Carolina at Wilmington,
2002/05/27
- 2001g
- Title: Geometric first-order controllability conditions for affine
connection control systems
Detail: 40th IEEE Conference on Decision and Control, Orlando, FL,
2001/12/14
- 2001f
- Title: Control for mechanical systems
Detail: Coleman-Ellis lecture, Department of Mathematics & Statistics,
Queen's University, 2001/11/07
- 2001e
- Title: Control theory for mechanical systems
Detail: Department of Applied Mathematics, University of Waterloo,
2001/10/26
- 2001d
- Title: Optimal control for a simplified hovercraft model
Detail: SIAM Conference on Control and its Applications, San Diego, CA,
2001/07/11
- 2001c
- Title: Sharp first-order controllability conditions for affine
connection control systems
Detail: SIAM Conference on Control and its Applications, San Diego, CA,
2001/07/11
- 2001b
- Title: Generalised splines via the maximum principle
Detail: SIAM Conference on Control and its Applications, San Diego, CA,
2001/07/11
- 2001a
- Title: Geometric low-order controllability conditions
Detail: Department of Mathematics & Statistics, Queen's University,
2001/02/02
- 2000f
- Title: The category of affine connection control systems
Detail: 39th IEEE Conference on Decision and Control, Sydney, Australia,
2000/12/15
- 2000e
- Title: Applications of differential geometry to mechanical control
systems
Detail: Meeting of the Seaway Section of the Mathematics Association of
America, SUNY Fredonia, New York, 2000/11/04
- 2000d
- Title: Control theory for mechanical systems
Detail: Department of Mechanical Engineering, Carnegie Mellon University,
2000/10/18
- 2000c
- Title: Optimal control for affine connection control systems
Detail: Invited talk for the Workshop on Mathematical Control Theory and
Robotics, SISSA, Trieste, Italy, 2000/07/27
- 2000b
- Title: Affine connection control systems
Detail: Invited talk for Math 2000, Canadian Mathematical Society meeting
at McMaster University, Hamilton, Ontario, 2000/06/13
- 2000a
- Title: Affine connection control systems
Detail: Invited talk for the IFAC Workshop on Lagrangian and Hamiltonian
Methods for Nonlinear Control, Princeton, NJ, 2000/03/18
- 1999b
- Title: When is a mechanical control system kinematic?
Detail: 38th IEEE Conference on Decision and Control, Phoenix, AZ,
1999/12/07
- 1999a
- Title: Optimal control of affine connection control systems
Detail: Workshop on Geometric and Multibody Mechanics: Nonlinear Dynamics and
Control, Mathematisches Forschungsinstitut Oberwolfach, 1999/07/30
- 1998e
- Title: Control theory for simple mechanical control systems
Detail: Coordinated Science Laboratory, University of Illinois,
Urbana-Champaign, 1998/12/03
- 1998d
- Title: Mechanical systems on homogeneous spaces
Detail: Department of Mathematics & Statistics, Queen's University,
1998/11/06
- 1998c
- Title: Controllability of simple mechanical control systems
Detail: 13th International Workshop on Differential Geometric Methods in
Theoretical Mechanics, Alden Biesen, Belgium, 1998/08/27
- 1998b
- Title: Mechanical systems on homogeneous spaces
Detail: University of Warwick, Workshop on Hamiltonian Systems,
1998/07/17
- 1998a
- Title: Controllability of simple mechanical control systems
Detail: Queen's University Department of Mathematics and Statistics,
1998/03/10
- 1997e
- Title: Lagrangian reduction for simple mechanical systems with constant
orbit type
Detail: Control and Dynamical Systems Seminar, California Institute of
Technology, 1997/09/08
- 1997d
- Title: Equations of motion for nonholonomic systems
Detail: Invited talk, Workshop on Non-holonomic Constraints in Dynamics,
The University of Calgary, 1997/08/28
- 1997c
- Title: Local configuration controllability for a class of mechanical systems
with a single input
Detail: European Control Conference, Brussels, Belgium, 1997/07/01
- 1997b
- Title: Control theory for mechanical systems
Detail: Simon Frasier University Department of Mathematics, 1997/02/14
- 1997a
- Title: Mechanical systems with symmetry (in three minutes)
Detail: MIR@W Brown Bag Lunch, 1997/01/20
- 1996g
- Title: The role of affine connections in control theory for mechanical
systems
Detail: University of Warwick Department of Mathematics, 1996/10/07
- 1996f
- Title: Controllability of Lagrangian systems
Detail: University of New Brunswick Department of Mathematics and
Statistics, 1996/08/28
- 1996e
- Title: Controllability of Lagrangian systems
Detail: MTNS '96, 1996/06/16
- 1996d
- Title: Control of Lagrangian systems
Detail: Ohio University Department of Mechanical Engineering,
1996/05/30
- 1996c
- Title: Affine connections and constraints
Detail: CDS 241 Seminar, 1996/05/06
- 1996b
- Title: The role of affine connections in mechanics and control
Detail: Control and Dynamical Systems Seminar, 1996/04/22
- 1996a
- Title: The symmetric product in geometry, mechanics, and control
theory
Detail: New Mexico State University Department of Mathematical Sciences,
1996/02/20
- 1995d
- Title: Controllability of simple mechanical control systems
Detail: 34th IEEE Conference on Decision and Control, 1995/12/15
- 1995c
- Title: Controllability of Lagrangian control systems
Detail: AFOSR kick off meeting, 1995/07/27
- 1995b
- Title: Controllability of Lagrangian control systems
Detail: University of Victoria Department of Mechanical Engineering,
1995/06/09
- 1995a
- Title: Controllability of mechanical control systems
Detail: Thesis presentation, 1995/04/21
Andrew D. Lewis (andrew at mast.queensu.ca)