Appendix: Dini theorem for pseudo-Riemannian metrics
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We construct local normal forms of pseudo-Riemannian projectively equivalent 2-dimensional metrics.
6 pages. This is an appendix to the paper "A solution of another problem of Sophus Lie: 2-dimensional metrics admitting precisely one projective vector field" of V. Matveev
6 pages. This is an appendix to the paper "A solution of another problem of Sophus Lie: 2-dimensional metrics admitting precisely one projective vector field" of V. Matveev