jack.thomas

@universite-paris-saclay.fr

Bureau: 2P17

Postdoctoral Researcher

Laboratoire de Mathématiques d'Orsay

Analyse Numérique et Equations aux Dérivées Partielles

Université Paris-Saclay

Postdoc Supervisor: Antoine Levitt

PhD Supervisor: Prof. Christoph Ortner

*Papers & Preprints:
*

*Papers & Preprints:*

- Christoph Ortner, Jack Thomas, and Huajie Chen. Locality of interatomic forces
in tight binding models for insulators.
*ESAIM: Mathematical Modelling and Numerical Analysis, 54(6): 2295-2318 (2020)*. [doiLink opens in a new window | arXivLink opens in a new window | abstract | posterLink opens in a new window]. - Christoph Ortner and Jack Thomas. Point defects in tight binding models for
insulators.
*Mathematical Models and Methods in Applied Sciences, 30(14): 2753-2797 (2020)*. [doiLink opens in a new window | arXivLink opens in a new window | abstract]. - Jack Thomas. Locality of interatomic interactions in self-consistent tight
binding models.
*Journal of Nonlinear Science, 30(6): 3293-3319 (2020).*[doiLink opens in a new window | arXivLink opens in a new window | abstract]. - Jack Thomas, Huajie Chen, and Christoph Ortner. Body-ordered approximations of
atomic properties.
*Archive for Rational Mechanics and Analysis, 246(1): 1-60 (2022).*[doiLink opens in a new window | arXivLink opens in a new window | abstract]. - Markus Bachmayr, Geneviève Dusson, Christoph Ortner, and Jack Thomas. Polynomial
approximation of symmetric functions.
*Mathematics of Computation, 93(346): 811-839 (2024).*[doiLink opens in a new window | arXivLink opens in a new window | abstract]. - Jack Thomas, William J. Baldwin, Gábor Csányi, and Christoph Ortner. Self-consistent Coulomb interactions for machine learning interatomic potentials.
*arXiv e-prints 2406.10915.*[arXivLink opens in a new window | abstract].

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*Education:*

*Education:*

- Sept 2018 - Sept 2021: PhD in Mathematics and Statistics, University of
Warwick
- Supervised by Christoph Ortner
- Thesis: Analysis of an
*ab initio*Potential Energy Landscape - Prize: Faculty Thesis Prize 2022 (joint winner)

- Sept 2017 - Aug 2018: MSc in Mathematics and Statistics, University of
Warwick
- Thesis: Analysis of the Tight Binding Model
- Research Study Group: Machine
Learning for Image AnalysisLink opens in a new
window
*(with Hanson BharthLink opens in a new window, Jacek KiedrowskiLink opens in a new window and Jaro SantLink opens in a new window and supervised by Dr Björn StinnerLink opens in a new window and Dr Stefan AdamsLink opens in a new window)*

- Sept 2013 - Jun 2017: MMath in Mathematics, University of Warwick
- Thesis: Incompatibility of Gradients.
*Supervised by Prof. Filip RindlerLink opens in a new window*

- Thesis: Incompatibility of Gradients.

## Other:

- Associate Member of the Institute of Mathematics and its Applications (IMALink opens in a new window)
- Statistics, Probability, Analysis & Applied Mathematics (SPAAMLink opens in a new window) student seminar series organiser (2019/20)