Alex Infanger

About

Ahoy. I recently graduated with a PhD from the Institute for Computational and Mathematical Engineering at Stanford. I currently work on numerical methods for Markov processes.

Contact

axelnifgarden [ ] amgil [ ] com. (Up to a permutation, that is. Note my middle name is Dara.).

News, Talks, etc.

• October 2022. I spent a few months facilitating reading groups on the AGI safety fundamentals curriculum in Boston. This was for the MIT AI Alignment Team (note I was not officially affiliated with MIT: this work was funded by the FTX Future Fund regrant program).
• June 2022. "Truncation Algorithms for Markov Chains and Processes" received an honorable mention for the Gene Golub Dissertation Award.
• June 2021. I was honored to receive ICME's Teaching Assistant Award for the 2020-2021 academic school year. This was the year I was an assistant for two ICME PhD core courses: CME 305 (Discrete Mathematics & Algorithms) and CME 308 (Stochastic Methods in Engineering).

Preprints

• "A new truncation algorithm for Markov chain equilibrium distributions with computable error bounds." (2022).
  A. Infanger, P. W. Glynn.
  (code)
• "On convergence of a truncation scheme for approximating stationary distributions of continuous state space Markov chains and processes." (2022).
  A. Infanger, P. W. Glynn.
• "On convergence of general truncation-augmentation schemes for approximating stationary distributions of Markov chains." (2022).
  A. Infanger, P. W. Glynn, Y. Liu.
• "Solving Poisson's equation: existence, uniqueness, martingale structure, and CLT." (2022).
  P. W. Glynn, A. Infanger.

Publications

• "Solutions of Poisson's equation for stochastically monotone Markov chains."
  P. W. Glynn, A. Infanger.
  Queueing Models and Service Management (2022).
• "On the spectral radius and stiffness of Markov jump process rate matrices."
  P. W. Glynn, A. Infanger.
  Stochastic Models (2020).
• "Special Classes of Terrestrial Gamma Ray Flashes From RHESSI."
  D. M. Smith et al.
  Journal of Geophysical Research: Atmospheres (2020).
• "The rarity of terrestrial gamma‐ray flashes: 2. RHESSI stacking analysis."
  D. M. Smith et al.
  Journal of Geophysical Research: Atmospheres (2016).

Links

Twitter, LinkedIn, GitHub, CV (long form CV).

Last updated: 03/03/2023.