Organized Conferences

• September 13-17, 2010, Summer School Canonical Metrics on Kähler Manifolds, Cologne
  (organized together with Prof. G. Marinescu and Prof. U. Semmelmann)

Conference Talks

• April 18, 2012, Lowest Eigenvalue of the Dirac Operator on Kähler Manifolds and Special Holonomy,
  Workshop: Geometric Structures on Manifolds, Banff International Research Center , Banff, Canada


• August 29, 2011, On Formal Riemannian Metrics,
  The 10th International Workshop on Differential Geometry and its Applications,
  Ovidius University, Constanta, Romania


• November 4, 2010, Limiting Kähler Manifolds for Kirchbergs Inequalities,
  Lie Theory and Complex Geometry, Philipps University, Marburg, Germany


• August 30, 2010, A Representation-Theoretical Proof of Branson's Classification of Elliptic Generalized Gradients,
  Differential Geometry and Its Applications 2010, Masaryk University, Brno, Czech Republic


• January 19, 2010, Geometric Description of Kähler Manifolds Carrying Kählerian Twistor Spinors,
  Journées Nancéiennes de Géométrie, Institut Élie Cartan, Université Henri-Poincaré, Nancy

Selected Seminar Talks

• December 5, 2012, Extremal Rank Homogeneous Clifford Structures,
  Geometry and Topology Oberseminar, University of Bielefeld


• April 26, 2012, Homogeneous Clifford Structures,
  Oberseminar Global Analysis, University of Regensburg


• December 7, 2011, Higher Rank Homogeneous Clifford Structures,
  Forschungsseminar, Humboldt Universität, Berlin


• May 18, 2011, Dirac Operators in Kähler Geometry,
  Spring School Index Theory, Graduiertenkolleg Regensburg, Hesselberg


• January 5, 2011, On Formal Riemannian Metrics,
  Differential Geometry Seminar, IMAR, Bucharest


• March 30, 2010, Special Classes of Spinors on Riemannian and Kähler Manifolds,
  Doctorands Seminar, Mathematics Research Unit, University of Luxemburg


• March 11, 2010, Die geometrische Beschreibung von Kählerschen Mannigfaltigkeiten die Kählersche Twistorspinoren zulassen,
  Faculty of Mathematics, Ruhr-University, Bochum


• January 28, 2010, The Geometric Description of Kähler Manifolds Carrying Kählerian Twistor Spinors,
  Differential Geometry Oberseminar, Institute of Differential Geometry, Leibniz University, Hannover


• June 3, 2009, Kähler Manifolds Carrying Kählerian Twistor Spinors,
  Differential Geometry Seminar, IMAR, Bucharest


• May 26, 2009, Kählersche Mannigfaltigkeiten mit kleinstem Eigenwert des Dirac-Operators,
  Geometry Oberseminar, Faculty of Mathematics, LMU München


• April 30, 2009, Kählersche Mannigfaltigkeiten, die Kählersche Twistorspinoren zulassen,
  Differential Geometry Oberseminar, Institute of Mathematics, University of Regensburg


• April 20, 2009, Kählersche Mannigfaltigkeiten mit kleinstem Eigenwert des Dirac-Operators,
  Differential Geometry Oberseminar, Department of Mathematics, University of Hamburg


• February 10, 2009, A Short Insight into Spin Geometry, Outline as [pdf],
  Blockseminar Graduiertenkolleg, Wermelskirchen


• September 10, 2008, Kato Constants and Ellipticity of Generalized Gradients,
  Differential Geometry Seminar, Institute of Mathematics Simion Stoilow of the Romanian Academy, Bucharest


• May 26, 2008, Ellipticity of Generalized Gradients,
  A. Besse Seminar, Centre de Mathématiques Laurent Schwartz, École Polytechnique, Paris


• February 13, 2008, Geodesics and Jacobi Vector Fields on Riemannian Manifolds,
  Blockseminar Graduiertenkolleg, Marienthal


• December 11, 2007, Introduction to Conformal Geometry,
  Geometry Seminar, Institute of Mathematics, University of Cologne


• June 27, 2007, The Space of Weitzenböck Formulas on a Riemannian Manifold,
  Differential Geometry Seminar, Institute of Mathematics Simion Stoilow of the Romanian Academy, Bucharest


• March 27, 2007, On Curvature, Physikal Motivation as [pdf],
  Graduiertenkolleg Fellow Seminar, University of Cologne


• March 12, 2007, Weitzenböck Formulas in Geometry and Topology [pdf],
  Blockseminar Graduiertenkolleg, Bad Honnef


• November 28, 2006, Extremal Metrics on Sasakian Manifolds,
  Geometry Seminar, Institute of Mathematics, University of Cologne