S. Ivanov

activity

19992022

most citedNon-Kaehler Heterotic String Compactifications with non-zero fluxes and constant dilaton

79 citations · 158 across the 14 of their papers we have counts for

collaborators

Showing 2010Show all

3 papers · 1 filter

math.DG2010

HKT manifolds with holonomy SL(n,H)

Stefan Ivanov, Alexander Petkov

We show that on an HKT manifold the holonomy of the Obata connection is contained in SL(n,H) if and only if the Lee form is an exact one form. As an application, we show compact HK…

math.DG2010★ 1 cited

The twistor space of a quaternionic contact manifold

Johann Davidov, Stefan Ivanov, Ivan Minchev

We show that the CR structure on the twistor space of a quaternionic contact structure described by Biquard is normal if and only if the Ricci curvature of the Biquard connection c…

math.AP2010

The optimal constant in the $L^{2}$ Folland-Stein inequality on the quaternionic Heisenberg group

Stefan Ivanov, Ivan Minchev, Dimiter Vassilev

We determine the best (optimal) constant in the $L^{2}$ Folland-Stein inequality on the quaternionic Heisenberg group and the non-negative functions for which equality holds.

HKT manifolds with holonomy SL(n,H)

The twistor space of a quaternionic contact manifold

The optimal constant in the L2 Folland-Stein inequality on the quaternionic Heisenberg group

The optimal constant in the $L^{2}$ Folland-Stein inequality on the quaternionic Heisenberg group