Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1996-12-07
Grav.Cosmol. 2 (1996) 297-305
Physics
High Energy Physics
High Energy Physics - Theory
9 pages, LaTex, subm. to Gravitation and Cosmology
Scientific paper
Multidimensional gravitational model on the manifold $M = M_0 \times \prod_{i=1}^{n} M_i$, where $M_i$ are Einstein spaces ($i \geq 1$), is considered. The action contains $m = 2^n -1$ dilatonic scalar fields $\phi^I$ and $m$ (antisymmetric) forms $A^I$. When all fields and scale factors of the metric depend (essentially) on the point of $M_0$ and any $A^I$ is "proportional" to the volume form of submanifold $M_{i_1} \times ... \times M_{i_k}$, $1 \leq i_1 < ... < i_k \leq n$, the sigma-model representation is obtained. A family of "Majumdar-Papapetrou type" solutions are obtained, when all $M_{\nu}$ are Ricci-flat. A special class of solutions (related to the solution of some Diophantus equation on dimensions of $M_{\nu}$) is singled out. Some examples of intersecting p-branes (e.g. solution with seven Euclidean 2-branes for D = 11 supergravity) are considered.}
Ivashchuk Vladimir D.
Melnikov Vitaly N.
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