A Geometric Intrepertation for the Hans Lewy Operator
A Homotopy Classification οf Symplectic Immersions
A new class of almost complex structures on tangent bundle of a Riemannian manifold
In this paper, the standard almost complex structure on the tangent bunle of a Riemannian manifold will be generalized. We will generalize the standard one to the new ones such that the induced -tensor on the tangent bundle using these structures and Liouville -form will be a Riemannian metric. Moreover, under the integrability condition, the curvature operator of the base manifold will be classified.
A Nijenhuis-type tensor on the quotient of a distribution
A special type of triangulations in numerical nonlinear analysis.
To calculate the zeros of a map f : Rn → Rn we consider the class of triangulations of Rn so that a certain point belongs to a simplex of fixed diameter and dimension. In this paper two types of this new class of triangulations are constructed and shown to be useful to calculate zeros of piecewise linear approximations of f.
Abnormal curves on the Goursat systems of .
An expression of classical dynamics