A presentation of our newly employed colleagues.

## Sagy Ephrati

### Postdoctor at the Division of Applied Mathematics and Statistics

I recently obtained my PhD at the University of Twente in the Netherlands and will join the group of Klas Modin as a postdoc.

My main research interests lie in computational fluid dynamics, (stochastic) model development for geophysical flows, and combining these subjects with geometric mechanics.

Start date: December 1, 2023

## Moritz Hauck

### Postdoctor at the Division of Applied Mathematics and Statistics

Start date: October 1, 2023

## Antonio Trusiani

### Postdoctor at the Division of Algebra and Geometry

Start date: September 1, 2023

## Nachi Avraham-Re'em

### Postdoctor at the Division of Analysis and Probability Theory

I have recently completed my Ph.D. at the Hebrew University under the supervision of Prof. Zemer Kosloff, and I will be joining as a postdoc to the research group of Prof. Michael Björklund.

My research is mainly in Ergodic Theory and Probability. I am also interested in Descriptive Set Theory and its connections to the aforementioned subjects.

Start date: August 28, 2023

## Gustav Mårdby

### PhD student at the Division of Analysis and Probability Theory

I am interested in geometric analysis, a branch of mathematics that involves both geometric and analytic techniques. The analysis typically comes from mathematical physics, which uses partial differential equations to describe physical processes like heat, waves, and energy. The physical process happens in some geometric setting, and this is where the geometry enters.

In my master's thesis, I studied the relationship between the spectrum of the Laplace operator on bounded domains in the plane and their geometry. I will continue this investigation and study related problems in geometric analysis with main supervisor Julie Rowlett.

Start date: August 21, 2023

## Noémie Legout

### Guest teacher at the Division of Algebra and Geometry

Start date: August 18, 2023

## Joel Danielsson

### Guest teacher at the Division of Analysis and Applied Probability

I am joining the department as a guest lecturer, where I will teach both mathematics and statistics.

My main research interests are probabilistic combinatorics in general and random graphs/networks in particular. One of my current projects concerns random simplicial complexes, and the enumeration of simplicial manifolds. Some topics that I have worked on are random instances of discrete optimisation and satisfiability problems, local graph limits, and random k-SAT models.

Start date: August 15, 2023

## Akash Sharma

### Postdoctor at the Division of Applied Mathematics and Statistics

Start date: August 14, 2023

## Alejandro Lozada Cortés

### PhD student at the Division of Applied Mathematics and Statistics

Physicist & Journalist, I like combining tools. I'll be joining Prof. Rebecka Jörnsten's group studying (and hopefully developing) novel techniques for matrix and tensor imputation with the aim of expediting the process of drug discovery for Glioblastoma.

Start date: August 14, 2023

## Philipp Misof

### PhD student at the Division of Algebra and Geometry

I'm joining Jan Gerkens group in the area of mathematical foundations of deep learning. I'm particularly interested in geometric descriptions of neural networks (NNs), e.g. equivariant NNs, allowing for better-tailored algorithms. Owing to my physics background, my work is influenced by symmetry-centered approaches typically found in mathematical physics.

Previously I obtained a master's degree in physics at the University of Vienna. While my thesis dealt with invariant NNs in the field of condensed matter physics, I'm now excited to investigate NNs in a more fundamental setting at Chalmers as part of a WASP-funded program.

Start date: August 14, 2023

## Björn Müller

### PhD student at the Division of Applied Mathematics and Statistics

My interests are in computational mathematics with a focus on stochastic methods and numerical analysis. I will be working on manifolds that evolve stochastically over time. The goal of the project, which is supervised by Annika Lang, is to define these manifolds, analyze their properties and ultimately simulate them, combining methods from SPDEs, stochastic processes and geometry.

I have a Master's degree in Mathematics from the University of Louisiana at Lafayette, USA. My Master's thesis focused on numerical analysis for PDEs, specifically on exponential time differencing schemes for advection-diffusion-reaction equations.

Start date: August 14, 2023

## Ruben Seyer

### PhD student at the Division of Applied Mathematics and Statistics

My interests lie at the intersection of Bayesian inference and machine learning, where I will work on computational methods for statistics. I am particularly interested in applications within spatial statistics and point processes. Thus far I have focused on stochastic gradient methods and piecewise deterministic Markov processes.

I will be supervised by Moritz Schauer and Aila Särkkä. Originally I have a master's degree in Engineering Mathematics from Chalmers and indeed wrote my thesis at the department about differentiable Monte Carlo methods using piecewise deterministic Markov processes.

Start date: August 14, 2023

## Victor Ahlquist

### PhD student at the Division of Algebra and Geometry

I am a PhD student in analytic number theory. Specifically, I am interested in the low-lying zeros of families of L-functions.

Start date: 1 June, 2023

## Nina Gantert

### Jubilee professor at the division of Analysis and Probability Theory

I am working in probability theory, in particular on stochastic processes, random media and large deviations. My research topics include the use of random walks to model transport in disordered media, and interacting particle systems as for instance the exclusion process.

I am also interested in applications of probability theory to Physics and Biology.

Start date: 1 May, 2023

## Georg Huppertz

### PhD student at the Division of Analysis and Probability Theory

My research will revolve around C*-algebras, in particular Cuntz semigroups. There exist several invariants to distinguish C*-algebras. The Cuntz semigroup is one of them. It has a couple of benefits compared to K-theory. The complex numbers, the Jiang-Su algebra and the suspension of the Calkin algebra, all have the same K_0- and K_1-groups, whereas each of them has a different Cuntz semigroup. Besides, the Cuntz semigroups preserves the closed ideal structure of the C*-algebra, something that K-theory does not in general.

I will work under supervision of Hannes Thiel and Christian Johansson. I hold a MSc-degree from the Radboud University in Nijmegen and a BSc-degree from Leiden University, both in the Netherlands. I wrote my master thesis about the Universal Coefficient Theorem for C*-algebras.

Start date: 1 May, 2023

## Elin Bergström

### Study administrator, Operations Support

will work as an administrator within operations support, mainly with study administration such as examination administration, student office work and results reporting. Previously, I worked as a study administrator at the Department of Chemistry and Molecular Biology at the University of Gothenburg.

Start date: 11 April, 2023

## Eszter Lakatos

### Assistant professor at the Division of Applied Mathematics and Statistics

I am joining the department in a Health Engineering Area of Advance position. My research focuses on developing mathematical models and bioinformatic methods to understand how cancers adapt to their environment.

In this position, I will work on stochastic models of tumour growth and new methods for analysing cancer sequencing data. I will apply these methods to study the cancer-immune interaction and cancer dynamics during therapy.

Start date: 1 April, 2023