ON INVARIANTS OF IMMERSIONS OF AN n-DIMENSIONAL MANIFOLD IN AN n-DIMENSIONAL PSEUDO-EUCLIDEAN SPACE
Abstract
Let be the n-dimensional pseudo-Euclidean space of index p and M(n, p) the group of all transformations of
generated by pseudo-orthogonal transformations and parallel translations. We describe the system of generators of the differential field of all M(n, p)-invariant differential rational functions of a map
of an open subset
. Using this result, we prove analogues of the Bonnet theorem for immersions of an n-dimensional C∞-manifold J in
. These analogues are given in terms of the pseudo-Riemannian metric, the volume form, and the connection on J induced by the immersion of J in
.
This work was supported by the Research Fund of TUBITAK. Project number:107T049.