On Knotted Spheres in Euclidean $4$-space $ \mathbb{E}^{4}$
  In the present study we consider knotted spheres in Euclidean $4$-space $ \mathbb{E}^{4}$. Firstly, we give some basic curvature properties of knotted spheres in $ \mathbb{E}^{4}$. Further, we obtained some results related with the conjugate nets and Laplace transforms of these kind of surfaces. 
Kadri Arslan
math.DG