Advances in Applied Clifford Algebras, cilt.21, sa.4, ss.707-719, 2011 (SCI-Expanded)
In this paper we give a new definition of harmonic curvature functions in terms of B2 and we define a new kind of slant helix which we call quaternionic B2-slant helix in 4-dimensional Euclidean space E4 by using the new harmonic curvature functions. Also we define a vector field D which we call Darboux quaternion of the real quaternionic B2-slant helix in 4-dimensional Euclidean space E4 and we give a new characterization such as: α:I ⊂ ℝ → E4 isis a quaternionic B2B2-slant helix ↔ H2 -KH1 where H2, H1 are harmonic curvature functions and K is the principal curvature function of the curve α. © 2011 Springer Basel AG.