Researcher in Applied Mathematics

Chebychev Laboratory of Sankt Petersburg State University
Faculty for Mathematics and Mechanics
Vasilievsky Island 14th line No. 29
Sankt Peterburg, Russia, 199178
mail to: k.geldhauser at OR [name.surname] at (yes, this email-address is still valid!)

Why I chose to work at Chebychev Lab is outlined here.



I am currently a postdoctoral researcher at Chebychev Laboratory of St. Petersburg State University, on a joint appointment with the Faculty for Mathematics and Mechanics as postdoc of Stanislav Smirnov. Before joining Chebychev Lab, I worked in the probability group at University of Pisa, Italy, and in the ERC group "Elliptic Partial Differential Equations and Symmetry of Interfaces and Layers for Odd Nonlinearities" at WIAS Berlin. I got my Ph.D. from University of Bonn, where my research was supported by the Federal Ministry of Education and Research via a Klaus Murmann graduate fellowship, and by the Bonn International Graduate School for Mathematics.

Research Outline

My research deals with phenomena arising in physics and image processing. To solve the questions arising there, I use tools from applied analysis, partial differential equations and probability theory. My goal is to capture the qualitative and quantitative behavior of solutions of nonlinear partial differential equations, which can be perturbed by noise. For more details, please see my Research page.

You can find my preprints on the servers of Calculus of Variations and Geometric Measure Theory in Pisa and

Apart from Maths...

...I do care a great deal about equal opportunities in academia. What I mean with this and why it is not (only) about women in maths you can read on my Unconscious bias 101 page.

I am passionate about maths communication and occasionally talk at Science Slams. I highly recommend the IMAGINARY project as an excellent platform for mathematics communication and visualisation.

I am a volunteer at Studies Without Borders, where I take care on our scholarship programme for students from the Northern Caucasus Region. Our scholarship programme has won the 2011's Rector's award for extraordinary achievement of a student organization. Read my reportage on Chechnya here.


On the right are some events I organized. For more details and recent talks or conferences I attended, see Activities

Oct 2017

Conducted a training on student selection and unconscious bias for volunteers involved in the selection process of new scholarship holders at Studieren Ohne Grenzen e.V.

March 7-19, 2016

Co-organized the DAAD Spring School Combinatorial Stochastic Processes in Hanoi, Vietnam. Conducted tutorial sessions

July 27-August 7, 2015

Co-organized the summer school and workshop Stochastic Analysis and Applications Mongolia 2015

June 2015

Organized a science meets industry workshop at a German manufacturer. Our team used simulated annealing to find a more efficient distribution of individual components in the company's warehouse. We predict a 15-20 percent reduction in picking times. The company will implement our proposed distribution in the forthcoming months and we will hopefully know more on the experimental results in 6-8 months.