Astrid Hilbert
ProfessorTeaching
I have been teaching courses at all levels from the large mathematical fields of analysis, probability theory and statistics, algebra, and discrete mathematics. At the time being, I am almost entirely teaching courses of the Master Programme in Mathematics and Modelling, specialisation in Mathematical Statistics and Financial Mathematics, a specialisation for which I am responsible.
Research
My field of research is Stochastic Analysis, that is based on a differential calculus for stochastic processes. We combine methods and generalize results from probability theory and functional analysis, in particular operator theory. These fields also constitute the basic mathematical toolboxes for quantum mechanical models.
More precisely, my area of research is stochastic dynamic systems driven by stochastic processes, e.g. degenerate Brownian motion as starting point and more general Lévy and nonMarkovian noises like fractional Brownian motion and nonlinear processes involving a meanfield contribution. The existence of solutions is studied while the focus is on qualitative properties of the system like transience, ergodicity, asymptotic dependence on parameters like time, scaling parameters, number of particles/players.
Due to their importance in applications, optimization problems were investigated recently, i.e. optimal filtering and stochastic optimal control as part of differential games. Motivated by applications and applicability, my field of research was completed by time series models, better accessible for statistical inference. My focuses are functional data analysis and computational statistics for high frequency and large data sets.
There are numerous applications in the natural sciences and technology as well as in economy, for example:
 hydrological problems in nuclear waste management
 image analysis and reconstruction, e.g. for tomographs
 optimal management of electricity networks
 time evolution in biology, e.g. the spreading of infections
 prediction of prices, e.g. electricity prices
 interbank monetary transfer
 appropriate reinsurance levels
 solvency of insurance business
 optimal evacuation of large buildings
Commissions
 Gender representative and member of the steering board at Ruhr University, Bochum
 Member of the steering board of the university library, Växjö University
 Ccoordinator of the international relations of the department of mathematics, Linnaeus University
 Member of the employment committee of the faculty of technology, Linnaeus University
 Member of the network for internationalization, Linnaeus University
Projects and Experiences
 Project leader of the bilateral project SIDAAD
 Several Erasmus projects within Europe
 Linneaus Palme projects with universities in Ukraine, Russia, Morocco, Tajikistan, and Tunisia
 Erasmus+ projects with the universities Tunis El Manar, Tunisia, and Cadi Ayyad, Morrocco
 Member and employee of project of Asyl, migrations och integrationsfonden/Asylum, Migration and Integration Fund (AMIF) at Migrationsverket
My research groups and projects

Stochastic Analysis and Stochastic Processes The researchers of this group focus on analytical and numerical aspects of solutions to stochastic differential equations (SDE’s and SPDE’s) and stochastic…

International Center for Mathematical Modeling ICMM is a centre for research in mathematical modelling, applicable within a number of different subjects and fields. Since 2000, the research group has…

Project: Quantum Information Access and Retrieval Theory (QUARTZ) Quantum Information Access and Retrieval Theory (QUARTZ) is a project that aims to educate early stage researchers to adopt a novel,…
Material from LSAA, Linnaeus University Workshop in Stochastic Analysis and Applications
Organization of conferences outside Linnaeus University
Publications
Article in journal (Refereed)
 Erraoui, M., Hilbert, A., Louriki, M. (2021). On a Levy process pinned at random time. Forum mathematicum. 33. 397417.
 Douissi, S., Agram, N., Hilbert, A. (2020). Meanfield optimal control problem of SDDES driven by fractional brownian motion. Probability and Mathematical Statistics. 40. 139158.
 Berrhazi, B., El Fatini, M., Hilbert, A., Mrhardy, N., Pettersson, R. (2020). Reflected backward doubly stochastic differential equations with discontinuous barrier. Stochastics : An International Journal of Probablitiy and Stochastic Processes. 92. 11001124.
 Agram, N., Hilbert, A., Øksendal, B. (2020). Singular control of SPDEs with spacemean dynamics. Mathematical Control & Related Fields. 10. 425441.
 Erraoui, M., Hilbert, A., Louriki, M. (2020). Bridges with Random Length : Gamma Case. Journal of theoretical probability. 33. 931953.
 Hilbert, A., Jarni, I., Ouknine, Y. (2020). On reflected stochastic differential equations driven by regulated semimartingales. Statistics and Probability Letters. 167. 17.
 EsSebaiy, K., Farah, F., Hilbert, A. (2020). Weyl Multifractional OrnsteinUhlenbeck Processes Mixed with a Gamma Distribution. Probability and Mathematical Statistics. 40. 269295.
 Assing, S., Hilbert, A. (2018). On the collapse of trial solutions for a dampeddriven nonlinear Schrödinger equation. Nonlinearity. 31. 49554978.
 Doerr, B., Fischer, P., Hilbert, A., Witt, C. (2017). Detecting Structural Breaks in Time Series via Genetic Algorithms. Soft Computing  A Fusion of Foundations, Methodologies and Applications. 21. 47074720.
 Basna, R., Hilbert, A., Kolokoltsov, V. (2017). An Approximate Nash Equilibrium for Pure Jump Markov Games of Meanfieldtype on Continuous State Space. Stochastics : An International Journal of Probablitiy and Stochastic Processes. 89. 967993.
 Djechiche, B., Hilbert, A., Nassar, H. (2016). On the Functional HodrickPrescott Filter with Noncompact Operators. Random Operators and Stochastic Equations. 24. 3342.
 Basna, R., Hilbert, A., Kolokoltsov, V. (2014). An Epsilon Nash Equilibrium For NonLinear Markov Games of MeanFieldType on Finite Spaces. Communications on Stochastic Analysis. 8. 449468.
 Albeverio, S., Hilbert, A., Kolokoltsov, V. (2012). Uniform Asymptotic Bounds for the Heat Kernel and the Trace of a Stochastic Geodesic Flow. Stochastics : An International Journal of Probablitiy and Stochastic Processes. 84. 315333.
 Albeverio, S., Hilbert, A., Kolokoltsov, V. (1999). Estimates uniform in time for the transition probability ofdiusions with small drift and for stochastically perturbed Newton equations. Journal of theoretical probability. 12. 293300.
 Albeverio, S., Hilbert, A., Kolokoltsov, V. (1997). Transcience of stochastically perturbed classical Hamiltonian systems and random wave operators. Stochastics and Stochastics Reports. 4155.
Conference paper (Refereed)
 Fischer, P., Hilbert, A. (2014). Fast Detection of Structural Breaks. Proceedings of COMPSTAT 2014, 21th International Conference on Computational Statistics, Geneva, August 1922, 2014. 916.
 Doerr, B., Fischer, P., Hilbert, A., Witt, C. (2013). Evolutionary Algorithms for the Detection of Structural Breaks in Time Series : extended abstract. Proceedings of the 15th annual conference on Genetic and evolutionary computation. 119120.
 Fischer, P., Hilbert, A. (2012). Visual time series analysis. Proceedings of COMPSTAT 2012 : 20th International Conference on Computational Statistics. 225234.
 Avis, D., Fischer, P., Hilbert, A., Khrennikov, A. (2009). Single, Complete, Probability Spaces Consistent With EPRBohmBell Experimental Data. Foundations of Probability and Physics5. 294301.
 Hilbert, A. (2004). Some features of regular Hamiltonian dynamics corresponding to degenerate diffusions on a cotangent bundle.
 Hilbert, A., Léandre, R. (2001). NagelSteinWainger estimates for balls associated with the Bismut condition. Stochastic Processes, Physics and Geometry: New Interplays II. 269284.
Article in journal (Other academic)
 Hilbert, A. (2000). Sur le comportement asymptotique du noyau associé à une diffusion dégénérée. Reviews Canadian Math. 151159.
Conference paper (Other academic)
 AlTalibi, H., Hilbert, A., Kolokoltsov, V. (2010). Nelsontype Limit for a Particular Class of Lévy Processes. AIP Conference Proceedings; 1232. 189193.
Manuscript (preprint) (Other academic)
 Albeverio, S., Hilbert, A., Kolokoltsov, V. (2009). Asymptotic Expansions for the Heat Kernel and the Trace of a Stochastic Geodesic Flow.
 Assing, S., Hilbert, A. A time change method for second order SDEs.
 Assing, S., Hilbert, A. On the collapse of a wave functionsatisfying a damped driven nonlinearSchr ̈odinger equation.
 AlTalibi, H., Hilbert, A. Differentiable Approximation by Solutions of Newton Equations Driven by Fractional Brownian Motion..
 AlTalibi, H., Hilbert, A., Kolokoltsov, V. SmoluchowskiKramers Limit for a System Subject to a MeanField Drift.