Cosmological and spherically symmetric solutions with intersecting p-branes

Multidimensional model describing the cosmological evolution and/or spheric ally symmetric configuration with n+1 Einstein spaces in the theory with se veral scalar fields and forms is considered. When electro-magnetic composit e p-brane ansatz is adopted, n "internal" spaces are Ricci-flat, one space M-0 has a nonzero curvature, and all p-branes do not "live" in M-0, a class of exact solutions is obtained if certain block-orthogonality relations on p-brane vectors are imposed. A subclass of spherically symmetric solutions (containing nonextremal p-brane black holes) is considered. Post-Newtonian parameters are calculated. (C) 1999 American Institute of Physics. [S0022- 2488(99)00510-1].