scholarly journals Local isometric embedding of two dimensional Riemannian manifolds into $r^3 $ with nonpositive Gaussian curvature

1985 ◽  
Vol 61 (7) ◽  
pp. 211-212 ◽  
Author(s):  
Gen Nakamura
2003 ◽  
Vol 63 (3) ◽  
pp. 475-520 ◽  
Author(s):  
Qing Han ◽  
Jia-Xing Hong ◽  
Chang-Shou Lin

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