辛自旋几何中扭量算子的复形
Complex of twistor operators in symplectic spin geometry
摘要：
对于具有亚辛结构（黎曼自旋结构的辛模拟）的辛流形，利用辛无挠仿射联络构造了一个由微分算子组成的序列.除了一个外，所有这些算子都是一阶的。一阶的是从黎曼自旋几何已知的扭量算子的辛类似物。证明了在辛联络的辛Weyl曲率张量场为零的条件下，上述序列构成复形。这就产生了一个新的复形，所谓的里奇型辛流形，其中承认一个亚辛结构。
英文摘要：
For a symplectic manifold admitting a metaplectic structure (a symplectic analogue of the Riemannian spin structure), we construct a sequence consisting of differential operators using a symplectic torsion-free affine connection. All but one of these operators are of first order. The first order ones are symplectic analogues of the twistor operators known from Riemannian spin geometry. We prove that under the condition the symplectic Weyl curvature tensor field of the symplectic connection vanishes, the mentioned sequence forms a complex. This gives rise to a new complex for the so called Ricci type symplectic manifolds, which admit a metaplectic structure.
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