- Hamiltonian formalism for null dust in general relativity1998 | Faculty of Mathematics and Physics
- Hamiltonian formalism for spherical shells collapsing on black holes1998 | Faculty of Mathematics and Physics
- Gauge invariant Hamiltonian formalism for spherically symmetric gravitating shells1997 | Faculty of Mathematics and Physics
- Gauge-invariant Hamiltonian formalism for spherically symmetric gravitating shells1997 | Faculty of Mathematics and Physics
- Comparing Hamiltonians of a spinning test particle for different tetrad fields2016 | Faculty of Mathematics and Physics
- Light propagation in a plasma on an axially symmetric and stationary spacetime: Separability of the Hamilton-Jacobi equation and shadow2022 | Faculty of Mathematics and Physics
- Excited-state quantum phase transitions in systems with two degrees of freedom. III. Interacting boson systems2019 | Faculty of Mathematics and Physics