146 citations · 847 across the 74 of their papers we have counts for
6 papers · 1 filter
Elementary proof of the bound on the speed of quantum evolution
Piotr Kosinski, Magdalena Zych
An elementary proof is given of the bound on "ortogonalization time".
Note on clock synchronization and Edwards transformations
Piotr Kosinski
Edwards transformations relating inertial frames with arbitrary clock synchronization are reminded and put in more general setting. Their group theoretical context is described.
Unitarity in the noncommutative theories
Piotr Kosinski, Pawel Maslanka
Simple argument in favour of unitarity, to all orders, of space-like noncommutative theory is given.
Global Symmetries of Noncommutative Space-time
C. Gonera, P. Kosinski, P. Maslanka +1
The global counterpart of infinitesimal symmetries of noncommutative space-time is discussed.
Space-time symmetry of noncommutative field theory
C. Gonera, P. Kosinski, P. Maslanka +1
We consider the deformed Poincare group describing the space-time symmetry of noncommutative field theory. It is shown how the deformed symmetry is related to the explicit symmetry…
Hamiltonian structures for Pais-Uhlenbeck oscillator
Katarzyna Bolonek, Piotr Kosinski
The hamiltonian structures for quartic oscillator are considered. All structures admitting quadratic hamiltonians are classified.