2 papers
hep-th1998
Perturbative String Dynamics Near the Photon Sphere
Mariusz P. Dabrowski, Alexander A. Zheltukhin
String dynamics near the photon sphere in Schwarzschild spacetime is considered on the basis of a perturbative approach with respect to a rescaled string tension as a small paramet…
hep-th1996
On a Possibility of Membrane Cosmology
S. N. Roshchupkin, A. A. Zheltukhin
Tensionless null p-branes in arbitrary cosmological backgrounds are considered and their motion equations are solved. It is shown that an ideal fluid of null p-branes may be consid…