David P. Herzog

Assistant Professor

Dept. of Mathematics

Iowa State University

Office: Carver 474

Email: dherzog "at" iastate "dot" edu

CV

Iowa State Math Department Webpage

Mathematics Colloquium

Probability Seminar

**Teaching (Fall '17)**

**Note**: All course materials can be found on Blackboard.

**Research**

My main interests are in stochastic analysis, in particular stochastic differential equations. I also have interests in applied mathematics, and some of my research
in this area has been featured in popular press: DukeToday,
Pharmacy Times,
Futurity,
WUNC,
Healio,
ACSH, ICT, AHC Media. Currently, my research is supported in part by grant DMS-1612898 from the National Science Foundation.

**Ergodicity and Lyapunov functions for Langevin dynamics with singular potentials** (PDF)

(with J.C. Mattingly). *Submitted*.
**Scaling and saturation in infinite-dimensional control problems with applications to SPDEs** (PDF)

(with N.E. Glatt-Holtz and J.C. Mattingly). *Submitted*.
**Geometric ergodicity of two-dimensional Hamiltonian systems with a Lennard-Jones-Like repulsive potential** (PDF)

(with B. Cooke, J.C. Mattingly, S.A. McKinley, S.C. Schmidler). *Commun. Math. Sci.*. **15** no. 7 pp. 1987-2025 (2017).
**The small-mass limit for Langevin dynamics with unbounded coefficients and positive friction** (PDF)

(with S. Hottovy and G. Volpe). *J. Stat. Phys.* **163** no. 3 pp.659-673 (2016).
**Noise-induced stabilization of planar flows II** (PDF)

(with J.C. Mattingly). *Electron. J. Probab.* **20** no. 113 pp.1-37 (2015).
**Noise-induced stabilization of planar flows I** (PDF)

(with J.C. Mattingly). *Electron. J. Probab.* **20** no. 111 pp.1-43 (2015).
**A practical criterion for positivity of transition densities** (PDF)

(with J.C. Mattingly). *Nonlinearity* **28** pp.2823-2845 (2015).
**Impact of coverage-dependent marginal costs on optimal HPV vaccination strategies** (PDF)

(with M.D. Ryser, K. McGoff, D.J. Sivakoff and E.R. Myers). *Epidemics* **11** pp.32-47 (2015).
**An extension of Hormander's hypoellipticity theorem** (Journal)

(with N. Totz). *Potential Anal.* **42** pp.403-433 (2015).
**The transition from ergodic to explosive behavior in a family of stochastic differential equations** (PDF)

(with J. Birell and J. Wehr). *Stochastic Process. Appl.* **122** pp.1519-1539 (2012).
**Ergodic properties of a model for turbulent dispersion of inertial particles**
(PDF)

(with K. Gawedzki and J. Wehr).
*Comm. Math. Phys.* **308** pp.49-80 (2011).
**Geometry's fundamental role in the stability of stochastic differential equations** (PDF)

*Ph.D. Dissertation* (2011).