48 citations · 200 across the 7 of their papers we have counts for
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math.DG2001
Almost contact manifolds, connections with torsion and parallel spinors
Thomas Friedrich, Stefan Ivanov
We classify locally homogeneous quasi-Sasakian manifolds in dimension five that admit a parallel spinor of algebraic type with respect to the unique connection $…
math.DG2001
Eigenvalue estimates of the Dirac operator depending on the Ricci tensor
Thomas Friedrich, Klaus-Dieter Kirchberg
We prove a new lower bound for the first eigenvalue of the Dirac operator on a compact Riemannian spin manifold by refined Weitzenböck techniques. It applies to manifolds with harm…