ON THE ELLIPTIC CURVES ARISING FROM 4-BAR MECHANISMS

被引:0
|
作者
Raza, Zahid [1 ]
Nazir, Shaheen [2 ]
机构
[1] Natl Univ Comp & Emerging Sci Lahore, Lahore, Pakistan
[2] Abdus Salam Int Ctr Theoret Phys, Trieste, Italy
关键词
Elliptic curves; real points; 4-bar mechanisms;
D O I
10.1216/RMJ-2012-42-4-1359
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We show that the residual curve R and the Darboux curve R' associated to a virtual 4-bar mechanism are two smooth elliptic curves defined over R, isomorphic over C but not isomorphic over R, see Theorem 2. The same question seems to be open for elliptic curves coming from an actual 4-bar mechanism. In this case we show that the corresponding real curves R(R) and R' (R) are diffeomorphic, see Theorem 3.
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页码:1359 / 1365
页数:7
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