“…Moreover, we obtain a new associated immersion ψ 1 with constant mean curvature one and Weierstrass data ( √ εh, ω). If ψ 0 is a complete immersion, then, from (19) and (20), (1 + ε|h| 2 )|ω| 2 is also a complete metric, that is, ψ 1 is a complete immersion. Thus, the study of complete BLW-surfaces in R 4 can be reduced to the study of complete immersions with constant mean curvature one.…”