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Stefan Ivanov

Identifiers

  • name variant Stefan Ivanov 0.60 · backfill

Papers (55)

  1. Humanity's Last Exam cs.LG · 2025 · author #131
  2. On the Strominger system and holomorphic deformations math.DG · 2017 · author #1
  3. A Bonnet-Myers type theorem for quaternionic contact structures math.DG · 2017 · author #2
  4. The qc Yamabe problem on non-spherical quaternionic contact manifolds math.DG · 2016 · author #1
  5. Non-umbilical quaternionic contact hypersurfaces in hyper-K\"ahler manifolds math.DG · 2016 · author #1
  6. A heat equation on a quaternionic contact manifold math.DG · 2016 · author #1
  7. Formality of 7-dimensional 3-Sasakian manifolds math.DG · 2015 · author #2
  8. The Lichnerowicz and Obata first eigenvalue theorems and the Obata uniqueness result in the Yamabe problem on CR and quaternionic contact manifolds math.DG · 2015 · author #1
  9. Solution of the qc Yamabe equation on a 3-Sasakian manifold and the quaternionic Heisenberg group math.DG · 2015 · author #1
  10. Connections on non-symmetric (generalized) Riemannian manifold and gravity math.DG · 2015 · author #1
  11. The quaternionic Heisenberg group and Heterotic String Solutions with non-constant dilaton in dimensions 7 and 5 math.DG · 2014 · author #2
  12. Quaternionic contact hypersurfaces in hyper-K\"ahler manifolds math.DG · 2014 · author #1
  13. Non-Kaehler Heterotic String Solutions with non-zero fluxes and non-constant dilaton math.DG · 2014 · author #2
  14. Sasaki-like almost contact complex Riemannian manifolds math.DG · 2014 · author #1
  15. The Obata sphere theorems on a quaternionic contact manifold of dimension bigger than seven math.DG · 2013 · author #1
  16. The sharp lower bound of the first eigenvalue of the sub-Laplacian on a quaternionic contact manifold in dimension seven math.DG · 2012 · author #1
  17. An Obata-type theorem on a three-dimensional CR manifold math.DG · 2012 · author #1
  18. An Obata type result for the first eigenvalue of the sub-Laplacian on a CR manifold with a divergence free torsion math.DG · 2012 · author #1
  19. Vanishing theorems on (l|k)-strong Kaehler manifolds with torsion math.DG · 2012 · author #1
  20. Bianchi type A hyper-symplectic and hyper-K\"ahler metrics in 4D math.DG · 2011 · author #3
  21. HKT manifolds with holonomy SL(n,H) math.DG · 2010 · author #1
  22. The twistor space of a quaternionic contact manifold math.DG · 2010 · author #2
  23. The optimal constant in the $L^2$ Folland-Stein inequality on the quaternionic Heisenberg group math.AP · 2010 · author #1
  24. Quaternionic Kaehler and Spin(7) metrics arising from quaternionic contact Einstein structures math.DG · 2010 · author #3
  25. Heterotic supersymmetry, anomaly cancellation and equations of motion hep-th · 2009 · author #1
  26. Explicit Quaternionic Contact Structures and Metrics with Special Holonomy math.DG · 2009 · author #3
  27. Compact supersymmetric solutions of the heterotic equations of motion in dimension 5 math.DG · 2008 · author #2
  28. Quaternionic contact manifolds with a closed fundamental 4-form math.DG · 2008 · author #1
  29. Compact supersymmetric solutions of the heterotic equations of motion in dimensions 7 and 8 math.DG · 2008 · author #2
  30. Non-Kaehler Heterotic String Compactifications with non-zero fluxes and constant dilaton math.DG · 2008 · author #2
  31. Conformal paracontact curvature and the local flatness theorem math.DG · 2007 · author #1
  32. Conformal quaternionic contact curvature and the local sphere theorem math.DG · 2007 · author #1
  33. Extremals for the Sobolev inequality on the seven dimensional quaternionic Heisenberg group and the quaternionic contact Yamabe problem math.DG · 2007 · author #1
  34. Curvature decomposition of G_2 manifolds math.DG · 2007 · author #2
  35. Quaternionic contact Einstein structures and the quaternionic contact Yamabe problem math.DG · 2006 · author #1
  36. Conformal equivalence between certain geometries in dimension 6 and 7 math.DG · 2006 · author #2
  37. Nearly hypo structures and compact Nearly K\"ahler 6-manifolds with conical singularities math.DG · 2006 · author #2
  38. Twistor and Reflector Spaces of Almost Para-Quaternionic Manifolds math.DG · 2005 · author #1
  39. Twistors of Almost Quaternionic Manifolds math.DG · 2005 · author #1
  40. SU(3)-structures on submanifolds of a Spin(7)-manifold math.DG · 2005 · author #1
  41. Locally conformal parallel $G_2$ and $Spin(7)$ manifolds math.DG · 2005 · author #1
  42. Complex product structures on some simple Lie groups math.DG · 2004 · author #1
  43. Hyper-ParaHermitian manifolds with torsion math.DG · 2004 · author #1
  44. SU(3)-instantons and $G_2, Spin(7)$-heterotic string solitons math.DG · 2003 · author #2
  45. Para-Hermitian and Para-Quaternionic manifolds math.DG · 2003 · author #1
  46. On the geometry of closed G2-structure math.DG · 2003 · author #2
  47. Quaternionic K\"ahler and hyperK\"ahler manifolds with torsion and twistor spaces math.DG · 2001 · author #1
  48. Connection with torsion, parallel spinors and geometry of Spin(7) manifolds math.DG · 2001 · author #1
  49. Geometry of Quaternionic K\"ahler connections with torsion math.DG · 2000 · author #1
  50. Weyl structures with positive Ricci tensor math.DG · 1999 · author #2
  51. The Dolbeault operator on Hermitian spin surfaces math.DG · 1999 · author #3
  52. Vanishing theorems on Hermitian manifolds math.DG · 1999 · author #2
  53. Conformally flat Einstein-like 4-manifolds and conformally flat Riemannian 4-manifolds all of whose Jacobi operators have parallel eigenspaces along every geodesic dg-ga · 1997 · author #1
  54. Locally conformal flat Riemannian manifolds with constant principal Ricci curvatures and locally conformal flat C-spaces dg-ga · 1997 · author #1
  55. Analytic fields on compact balanced Hermitian manifolds dg-ga · 1996 · author #2

Mentions

  • 1511.08930 #2 · backfill · confidence 0.70 Stefan Ivanov
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Frequent Coauthors