Sökning: "twistor"
Hittade 4 avhandlingar innehållade ordet twistor.
1. G-structures and Families of Isotropic Submanifolds in Complex Contact Manifolds
Sammanfattning : We study a generalized twistor correspondence between irreducible G-structures (with torsion in general) on complex manifolds Z and moduli spaces M of deformations of isotropic homogeneous submanifolds X in complex contact manifolds Y.For any irreducible G-structure on a complex manifold M we present an explicit construction of a contact manifold (a generalized twistor space) Y with contact line bundle L and a family F of isotropic submanifolds X in Y having M as its moduli space. LÄS MER
2. A visually geometric foundation of spinor and twistor algebra
Sammanfattning : The author’s geometrical interpretation of spinor algebra is formulated in a relativistically covariant way. It is shown how spinor space can be constructed from a space-like hyperplane in Minkowski space. LÄS MER
3. Relativistic particle mechanics : a hamiltonian approach
Sammanfattning : This study is devoted to certain fundamental problems within theoretical physics. The aim is to show that there exists a consistent Poincare invariant Hamiltonian formalism describing interactions between any number of discrete particles forming an isolated (in general spinning) system. No fields or potentials are needed for the description. LÄS MER
4. Harmonic morphisms, Hermitian structures and symmetric spaces
Sammanfattning : A harmonic morphism is a map between two Riemannian manifolds with the property that its composition with a local harmonic function on the codomain is a local harmonic function on the domain. Such a map is automatically a harmonic map, satisfying an additional partial conformality condition called horizontal (weak) conformality. LÄS MER
