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In this paper, we firstly introduce the group of similarity transformationsin the Minkowski-3 space. We describe differential- geometric invariants of anon-lightlike curve according to the group of similarity transformations of theMinkowski 3-space. We show extension of fundamental theorem for non-lightlikecurves under the group of similarity of the Minkowski 3-space.

The Similarity Invariants of non-lightlike Frenet curves in the Minkowski 3-space