14 citations · 112 across the 25 of their papers we have counts for
4 papers · 1 filter
Fundamental Relativistic Rotator. Hessian singularity and the issue of the minimal interaction with electromagnetic field
Łukasz Bratek
There are two relativistic rotators with Casimir invariants of the Poincaré group being fixed parameters. The particular models of spinning particles were studied in the past both…
Vertical gradients of azimuthal velocity in a global thin disk model of spiral galaxies NGC 2403, NGC 4559, NGC 4302 and NGC 5775
Joanna Jałocha, Łukasz Bratek, Marek Kutschera +1
We estimate the vertical gradient of rotational velocity for several spiral galaxies in the framework of a global thin-disc model, using the approximation of quasi-circular orbits.…
False constraints. A toy model for studying dynamical systems with degenerate Hessian form
Łukasz Bratek
This paper studies various aspects of the motion of relativistic rotators, both in the presence and absence of external fields, using a toy model which, in a sense, can be regarded…
Transverse gradients of azimuthal velocity in a global disk model of the Milky Way
Joanna Jałocha, Łukasz Bratek, Marek Kutschera +1
In this paper, we aim to estimate the vertical gradients in the rotational velocity of the Galaxy. This is carried out in the framework of a global thin disc model approximation. T…