49 citations · 113 across the 27 of their papers we have counts for
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math.DG2016
Non-umbilical quaternionic contact hypersurfaces in hyper-Kähler manifolds
Stefan Ivanov, Ivan Minchev, Dimiter Vassilev
We show that any compact quaternionic contact (qc) hypersurfaces in a hyper-Kähler manifold which is not totally umbilical has an induced qc structure, locally qc homothetic to the…
math.DG2016
The monotonicity of an entropy like energy for the heat equation on a quaternionic contact and CR manifolds
Dimiter Vassilev
A proof of the monotonicity of an entropy like energy for the heat equation on a quaternionic contact and CR manifolds is proven