82 citations
4 papers
Using Kolmogorov Complexity for Understanding Some Limitations on Steganography
Boris Ryabko, Daniil Ryabko
Recently perfectly secure steganographic systems have been described for a wide class of sources of covertexts. The speed of transmission of secret information for these stegosyste…
Radiation Pressure Acceleration by Ultraintense Laser Pulses
Tatiana Liseykina, Marco Borghesi, Andrea Macchi +1
The future applications of the short-duration, multi-MeV ion beams produced in the interaction of high-intensity laser pulses with solid targets will require improvements in the co…
Slow evolution of elliptical galaxies induced by dynamical friction
S. E. Arena, G. Bertin, T. Liseikina +1
Many astrophysical problems, ranging from structure formation in cosmology to dynamics of elliptical galaxies, refer to slow processes of evolution of essentially collisionless sel…
Universal Codes as a Basis for Time Series Testing
Boris Ryabko, Jaakko Astola
We suggest a new approach to hypothesis testing for ergodic and stationary processes. In contrast to standard methods, the suggested approach gives a possibility to make tests, bas…