Xf. Cao et C. Tian, BACKLUND-TRANSFORMATIONS ON SURFACES WITH (K(1)-M)(K(2)-M)=+ -L(2) INR-2,R-1/, Journal of physics. A, mathematical and general, 30(17), 1997, pp. 6009-6020
In this paper, we obtain three types of Backlund transformations on su
rfaces with (k(1) - m)(k(2) - m) = +/- l(2) in three-dimensional Minko
wski space R-2,R-1, where k(1) and k(2) are principal curvatures, m(gr
eater than or equal to 0) and l(> 0) are arbitrary constants. Using th
ese transformations, one can construct families of surfaces with (k(1)
- m)(k(2) - m) = +/- l(2) in R-2,R-1 from known ones.