Journal Papers
- T. Ohsawa, Symplectic Semiclassical Wave Packet Dynamics II: Non-Gaussian States, Nonlinearity, accepted. [pdf]
- A. Bloch, L. Colombo, R. Gupta, and T. Ohsawa, Optimal Control Problems with Symmetry Breaking Cost Functions, SIAM Journal on Applied Algebra and Geometry, 1(1), 626--646, 2017. [pdf]
- T. Ohsawa and C. Tronci, Geometry and Dynamics of Gaussian Wave Packets and their Wigner Transforms, Journal of Mathematical Physics, 58(9), 092105, 2017. [pdf]
- J. Keller, C. Lasser, and T. Ohsawa, A New Phase Space Density for Quantum Expectations, SIAM Journal on Mathematical Analysis, 48(1), 513–537, 2016. [pdf]
- T. Ohsawa, The Siegel Upper Half Space is a Marsden–Weinstein Quotient: Symplectic Reduction and Gaussian Wave Packets, Letters in Mathematical Physics, 105(9): 1301–1320, 2015. [pdf]
- T. Ohsawa, Symmetry and Conservation Laws in Semiclassical Wave Packet Dynamics, Journal of Mathematical Physics, 56: 032103, 2015. [pdf]
- T. Ohsawa, Contact Geometry of the Pontryagin Maximum Principle, Automatica, 55: 1–5, 2015. [pdf]
- T. Ohsawa and M. Leok, Symplectic Semiclassical Wave Packet Dynamics, Journal of Physics A: Mathematical and Theoretical, 46: 405201, 2013. [pdf]
- T. Ohsawa, Symmetry Reduction of Optimal Control Systems and Principal Connections, SIAM Journal on Control and Optimization, 51(1): 96–120, 2013. [pdf]
- M. Leok, T. Ohsawa, and D. Sosa, Hamilton–Jacobi Theory for Degenerate Lagrangian Systems with Holonomic and Nonholonomic Constraints, Journal of Mathematical Physics, 53: 072905, 2012. [pdf]
- M. Leok and T. Ohsawa, Variational and Geometric Structures of Discrete Dirac Mechanics, Foundations of Computational Mathematics, 11(5): 529–562, 2011. [pdf]
- T. Ohsawa, A. M. Bloch, and M. Leok, Discrete Hamilton–Jacobi Theory, SIAM Journal on Control and Optimization, 49(4): 1829–1856, 2011. [pdf]
- T. Ohsawa, O. E. Fernandez, A. M. Bloch, and D. V. Zenkov, Nonholonomic Hamilton–Jacobi Theory via Chaplygin Hamiltonization, Journal of Geometry and Physics, 61(8): 1263–1291, 2011. [pdf]
- T. Ohsawa and A. M. Bloch, Nonholonomic Hamilton–Jacobi Equation and Integrability, Journal of Geometric Mechanics, 1(4): 461–481, 2009. [pdf]
Refereed Conference Proceedings
- T. Ohsawa, Poisson Reduction of Optimal Control Systems, The 50th IEEE Conference on Decision and Control and European Control Conference, pp. 6230–6235, 2011. [pdf]
- M. Leok and T. Ohsawa, Discrete Dirac Structures and Implicit Discrete Lagrangian and Hamiltonian Systems, In XVIII International Fall Workshop on Geometry and Physics, pp. 91–102, 1260, AIP, 07 2010
- T. Ohsawa, A. M. Bloch, and M. Leok, Discrete Hamilton–Jacobi theory and discrete optimal control, The 49th IEEE Conference on Decision and Control (CDC), 2010, pp. 5438–5443, 2010.
- T. Ohsawa and T. Ohwada, Deterministic Hybrid Computation of Rarefied Gas Flows, Rarefied Gas Dynamics: 23rd International Symposium (AIP Conference Proceedings 663), pp. 931–938, 2003.
- T. Hokazono, S. Kobayashi, T. Ohsawa, and T. Ohwada, On the Time Step Error of the DSMC, Rarefied Gas Dynamics: 23rd International Symposium (AIP Conference Proceedings 663), pp. 390--397, 2003.