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JOURNALS // Matematicheskie Zametki // Archive
Mat. Zametki, 1968 Volume 4, Issue 2, Pages 165–168 (Mi mzm6757)
Certain properties of surfaces of negative external curvature in Lobachevskian space

L. A. Sidorov

Rybin Evening Engineering Institute, USSR

Abstract: Several relationships are established bearing on the external curvature, $K_e$ of surfaces in three-dimensional Lobachevskian space $L_3$ ($K_e<0$).

UDC: 513.78

Received: 11.03.1968


 English version: Mathematical Notes, 1968, 4:2, 589–591

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© Steklov Math. Inst. of RAS, 2024