Where available, links are to preprints (i.e. preliminary draft versions) in pdf format. In some cases the preprints may include errors or other material which was edited out in the published versions. See the published journals for the actual final versions.

- Exponential
Leveling for Stochastically Perturbed Dynamical Systems,
__SIAM J. Math. Anal.__4 (1982) pp. 532-540. - On the
Exponential Exit Law on the Small Parameter Exit Problem,
__Stochastics__8 (1983), pp. 297-323. - On the
Asymptotic Relation between Equilibrium Density and Exit Measure in the
Exit Problem,
__Stochastics__12 (1984), pp. 303-330. - Some
Regularity Results on the Ventcel-Freidlin Quasi-Potential Function
(co-authored with Tom Darden),
__Appl. Math Opt.__13 (1985), pp. 259-282. - The
Exterior Sphere condition for the Ventcel-Freidlin Quasi-Potential
Function,
__Appl. Math Opt.__14 (1986), pp. 49-54. - Recent
Progress on the Small Parameter Exit Problem,
__Stochastics__20, (1987), pp. 121-150. - Localization
Results for Densities Associated with Stable Small-Noise Diffusions,
__Prob. Th. and Rel. Fields__77 (1988), pp. 457-470. - Boundary
Local Time and Small Parameter Exit Problems with Characteristic
Boundaries,
__SIAM J. Math. Anal.__20 (1989), pp. 222-248. - Large
Deviations Results for the Exit Problem with Characteristic Boundary,
__J. Math. Anal. and Appl.__147 (1990), pp. 134-153. - Some
Phenomena of the Characteristic Boundary Exit Problem,
**Diffusion Processes and Related Problems in Analysis**, Volume 1, pp. 55-72, Birkhäuser, Boston, 1990. - Conditional
Exits for Small Noise Diffusions with Characteristic Boundary,
__Annals of Probability__20 (1992), pp. 1385-1419. - Regularity
of Boundary Quasipotentials for Planar Systems,
__Appl. Math. Opt.__30 (1994), pp. 79-101. - Cycling
and Skewing of Exit Measures for Planar Systems,
__Stochastics__48 (1994), pp. 227-247. - On the
Exit Law from Saddle Points,
__StochasticProcesses____and their Applications__60 (1995), pp. 287-311. - Exit Cycling for the Van der Pol Oscillator and
Quasipotential Calculations,
__J. Dynamics and Differential Equations__8 (1996), pp. 573-601. - Mathematical Approaches to the Problem of Noise Induced
Exit., in
**Stochastic Analysis, Control, Optimization and Applications: A Volume in Honor of W. H. Fleming**, (W. M. McEneaney, G. G. Yin and Q. Zhang, eds.), Birkhauser, Boston, 1999.

- Robust L2-Gain Control for Nonlinear Systems With
Projection Dynamics and Input Constraints: An Example From Traffic Control
(co-authored with J. Ball, T. Yu and P. Kachroo),
__Automatica__35 (1999), pp. 429-444. - Robust Feedback Control of a Single Server Queueing
System (co-authored with J. A. Ball and P. Kachroo),
__Mathematics of Control, Signals and Systems__12 (1999) pp. 307-345. - Robust Optimal Stopping-time Control for Nonlinear
Systems (co-authored with J. A. Ball and J. Chudoung),
__Appl. Math. & Optimization__46 (2002), pp. 1-29. - Robust Optimal Switching Control for Nonlinear
Systems (co-authored with J. A. Ball and J. Chudoung),
__SIAM J. Control and Optimization__41 (2002), pp. 900-931. - Robust Optimal Service Analysis of Single-Server
Re-Entrant Queues (co-authored with J. Hall, J. Menendez, D. Potter,
and I Rothstein),
__Computational Optimization and Applications__22 (2002), pp. 261-302. - Boundary-Influenced
Robust Controls: Two Network Examples,
__ESAIM: Control, Optimisation and Calculus of Variations__, 12 (2006), pp. 662-698. - On the Velocity
Projection for Polyhedral Skorokhod Problems,
__Applied Mathemaics E-Notes__5 (2005), pp. 52-59. - On Neumann type Boundary Conditions for Hamilton-Jacobi
Equations in Smooth Domains,
__Appl. Math. & Optimization__, 5 (2006), pp.359-381. (The published version is available at http://www.springerlink.com.) - Fluid
Limits of Optimally Controlled Queueing Networks (co-authored with G.
Pang),
__Journal of Applied Mathematics and Stochastic Analysis__, ,vol. 2007, Article ID 68958, 19 pages, 2007. doi:10.1155/2007/68958.

- Simple Singularities for Max-Concave Hamilton-Jacobi
Equations and Generalized Characteristics (co-authored with Arik
Melikyan),
__J. Optimization Theory and Applications,__138 (2008), pp. 155-174. (The published version is available at http://www.springerlink.com.) - A Uniqueness Result for
*p*-Monotone Viscosity Solutions of Hamilton-Jacobi Equations in Bounded Domains,__SIAM J. Control and Optimization__47 (2009), pp. 3167-3184. - Weak Convergence and Fluid Limits in Optimal Time-to-Empty Queueing Control Problems
*,*__Appl. Math. & Optimization__, vol. 64 (2011), pp. 339-362. - A Characterization of the Reflected Quasipotential (co-authored with Kasie Farlow),
__Appl. Math. & Optimization__, vol. 72 (2015), pp. 435-468.

- On a
Stochastic Control Problem with Exit Constraints,
__Appl. Math. Opt.__6 (1980), pp. 181-188. - Discount
Optimality throughout a Set of Parameters for One-Dimensional Transport
Processes
__Z. Wahr.__56 (1981), pp. 515-530. - Comparison
Results for Diffusions Conditioned on Positivity,
__J. of Appl. Prob.__20 (1983), pp. 766-777. - Derivative
Estimates for Eigenfunctions with Accessible Boundaries and Application to
Diffusions,
__Applicable Analysis__16 (1983), pp. 329-344. - Characteristic characterization of
viscosity supersolutions corresponding to nonlinear H∞ control
(co-authored with W. M. McEneaney), Proc. 13th IFAC World Congress,
Vol.E (1996), pp.401-406.

- On Lagrange Manifolds and Viscosity Solutions
(summary),
__J. Math. Systems, Estimation and Control__8 (1998), pp. 369-372. *Book Review*: Functional Integration and Partial Differential Equations, by M. Freidlin,__Bulletin of the AMS__17 (1987), pp. 346-351.