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A complete system of differential invariants for equivalence of curves in the$n$-dimensional pseudo-euclidean space with respect to the action of each ofthe groups $K^n \lhd O(n,p,K)$, $K^n \lhd SO(n,p,K)$, $O(n,p,K)$, and$SO(n,p,K)$, where $K = \mathbf{R}$, or $K = \mathbf{C}$, and $O(n,p,K)$$\bigl($respectively, $SO(n,p,K)\big)$ are a pseudo-orthogonal (specialpseudo-orthogonal) groups, is given.

The complete system of differential invariants of a curve in pseudo-euclidean space