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Characterization of the convergent sequences using linear combinations of k succesive terms
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Characterization of the Darboux functions. Applications
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Inequality of triangle type
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On some functional equations
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On some recurrent sequence
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On the existence of primitives of some real functions
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On the solutions of some functional equations over the set of continuous functions
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Polygons having the same center of gravity
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Segments and traights lines which contain the center of the inscribed circle in a triangle. Properties
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The determination of some group isomorphisme
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The duality in the study of homographic recurrent sequences
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The upper and lower limit sequence of real numbers
