My scientific interest are general relativistic inhomogeneous models and their application in cosmology. The general relativity is essential to understand processes which take place on large scales in the Universe. This is because on large scales the geometry of the space time is not Euclidean. Thus when performing astronomical observations one has to keep in mind that light from observed objects propagates through the Universe which is a complicated and evolving system. Although the evolution of the Universe can be neglected on small scales, it cannot be done so if distant objects, such as high--redshift galaxies, quasars or very remote supernovae are observed. Additionally, on large scales the impact of the cosmic structures on light propagation must be considered. Since in the Newtonian mechanics matter does not affect light propagation, the general relativity must be employed. That is why the cosmological models based on the general relativity are essential in exploring the remotes objects in the Universe.

My recent projects concentrate on modeling formation of cosmic structures using one of the relativistic models, called the quasispherical Szekeres model. Currently I am involved in studying the light propagation through the models of cosmic structures obtained within the Szekeres model. Especially I am interested in studying the effects of light propagation on final results of astronomical observations, such as supernova ob servation and observation of cosmic microwave background radiation.

My CV and list of publications you can find here.