Geodesic
Geometric ideas of N.~Lobachevsky (for his 225-th anniversary)
Matematičeskoe obrazovanie, Tome 81 (2017) no. 1, pp. 48-51

Voir la notice de l'article provenant de la source Math-Net.Ru

A short biography of the great Russian geometer Nikolay Lobachevsky and a description of his geometric ideas.
Keywords: Nikolai Ivanovich Lobachevsky, non-Euclidean geometry, hyperbolic geometry. 
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     author = {S. V. Zharov},
     title = {Geometric ideas of {N.~Lobachevsky} (for his 225-th anniversary)},
     journal = {Matemati\v{c}eskoe obrazovanie},
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     url = {http://geodesic.mathdoc.fr/item/MO_2017_81_1_a6/}
}
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S. V. Zharov. Geometric ideas of N.~Lobachevsky (for his 225-th anniversary). Matematičeskoe obrazovanie, Tome 81 (2017) no. 1, pp. 48-51. http://geodesic.mathdoc.fr/item/MO_2017_81_1_a6/