qc

qc (uncountable)

1. quaternionic contact
   • 2015, Yun Shi, Wei Wang, “On Conformal Qc Geometry, Spherical Qc Manifolds and Convex Cocompact Subgroups of ${\displaystyle {\rm {Sp}}{(n+1,1)}}$ ”, in arXiv‎:

     As a corollary, we prove that such a spherical qc manifold is scalar positive, negative or vanishing if and only if the Poincaré critical exponent of the discrete subgroup is less than, greater than or equal to ${\displaystyle 2n+2}$ , respectively..

• CQ