Talks/Vorträge
Talks at Conferences/Vorträge bei Konferenzen
- Positively curved manifolds with torus symmetry, DMV Annual Meeting, Section Geometry and Topology, Ilmenau, 27. September 2023
- Positive curvature, torus symmetry, and matroids, Geometrie, Mathematisches Forschungsinstitut Oberwolfach, 17. Juni 2022
- On the homotopy type of the space of metrics of positive scalar curvature, Analysis, Geometry and Topology of Positive Scalar Curvature Metrics, Mathematisches Forschungsinstitut Oberwolfach, 2. Juli 2021
- On the homotopy type of the space of metrics of positive scalar curvature, A-Fri-Ka Riemannian Topology Research Seminar, Online, 21. Januar 2021
- Applications of the Chang-Skjelbred Lemma to positive and non-negative curvature, Workshop on Torus Actions in Topology, Fields Institute, Toronto, Kanada, 11. Mai 2020
- Positively curved manifolds with isometric torus actions, Toric Topology 2019 in Okayama, Okayama, Japan, 21. November 2019
- Applications of the Chang-Skjelbred Lemma to positive and non-negative curvature I/II, The first geometry conference for friendship of Japan and Germany, Tokyo, 24. September 2019
- Positively curved manifolds with isometric torus actions, SPP 2026 Geometry at Infinity Conference, Münster, 4. April 2019
- Positively curved manifolds with isometric torus actions, Riemannian Topology Meeting 2018, Fribourg, Schweiz, 9. November 2018
- Non-negatively curved GKM orbifolds, Global Differential Geometry Workshop, TSIMF, Sanya, China, 28. Februar 2018
- On moduli spaces of invariant psc-metrics on quasitoric manifolds, Regional Geometry/Topology Meeting, Regensburg, 23. Juni 2017
- Invariant metrics of positive scalar curvature on S^1-manifolds, Workshop on Curvature and Global Shape, Münster, 30. Juli 2015
- Invariant metrics of positive scalar curvature on S^1-manifolds, Geometry and Topology, A conference in honor of Martin Bendersky's 70th birthday and in commemoration of our friend and colleague Sam Gitler, Princeton, 18. März 2015, Slides
- Circle actions and positive scalar curvature, Oberwolfach Workshop: Analysis, Geometry and Topology of Positive Scalar Curvature Metrics, Oberwolfach, 6. August 2014
- Rationally elliptic and non-negatively curved torus manifolds, Toric Topology in Osaka, Osaka, 22. Januar 2014
- Non-negatively curved torus manifolds, Mathematical Congress of the Americas 2013, Special Session on Toric Geometry and Topology, Guanajuato, Mexico, 9. August 2013, Slides
- Non-negatively curved torus manifolds, Workshop on Curvature and Global Shape, Münster, 23. Juli 2013
- Torus actions and positive scalar curvature, Riemannian Topology Meeting, Fribourg, 16. Juni 2012
- Non-abelian Lie-groups acting on quasitoric manifolds, British Topology Meeting, Edinburgh, 3. September 2011
- Actions of non-abelian Lie-groups on quasitoric manifolds, TTT77, Manchester, 10. Januar 2011
- Quasitoric manifolds homeomorphic to homogeneous spaces, Workshop on Geometry & Topology, Fribourg, 17. September 2010
- Torus manifolds with non-abelian symmetries, Symmetries in Geometry & Topology, Fribourg, 4. Juli 2008
Talks in Seminars and Colloquia/Vorträge in Seminaren und Kolloquien
- Positively curved manifolds with torus symmetry, SFB-Lecture, Universität Regensburg, 28. November 2023
- On 10-dimensional positively curved manifolds with isometric actions of 3-dimensional tori, Topology-Geometry Seminar, University of Oregon, USA, 6. Juni 2023
- On 10-dimensional positively curved manifolds with isometric actions of 3-dimensional tori, Research Seminar "Differential geometry and Analysis", Universität Marburg, 16. Mai 2023
- Geometry and topology of positively curved manifolds, Mathematisches Kolloquium, Universität zu Köln, 25. April 2023
- Positively curved manifolds with torus symmetry, Mathematisches Kolloquium, Université de Fribourg, Schweiz, 31. Mai 2022
- Positive Curvature, Symmetries, and Matroids, Topology-Geometry Seminar, University of Oregon, USA, 12. Oktober 2021
- Positive Curvature, Symmetries, and Matroids, International Polyhedral Products Seminar, Princeton University, USA, 7. Oktober 2021
- On the homotopy type of the space of metrics of positive scalar curvature, Geometry and Topology Seminar, Durham University, UK, 25. Februar 2021
- On the homotopy type of the space of metrics of positive scalar curvature, Topology-Geometry Seminar, University of Oregon, USA, 6. Januar 2021
- On the homotopy type of the space of metrics of positive scalar curvature, Geometry and Topology Seminar, University of Toronto, Kanada, 7. Dezember 2020
- On the homotopy type of the space of metrics of positive scalar curvature, Geometry and Topology Seminar, Syracuse University, USA, 10. Juli 2020
- Positively curved manifolds with isometric torus actions, Toric Topology Research Seminar, Fields Institute, Toronto, Kanada, 30. April 2020
- Torus actions on positively curved manifolds, Topology Seminar, Osaka City University, 18. September 2019
- A bordism theoretic proof of the rigidity of elliptic genera, Seminar on interactions between symplectic geometry, combinatorics and number theory, Universität zu Köln, 20. Mai 2019
- Anwendungen des äquivarianten Bordismus in der Differentialgeometrie, Antrittsvorlesung, Fachbereich Mathematik und Informatik, WWU Münster, 12. Dezember 2018
- Positively and non-negatively curved GKM manifolds, Geometry and Topology Seminar, Syracuse University, USA, 18. September 2018
- Applications of the work of Chang and Skjelbred to positive curvature, AG Differentialgeometrie, KIT Karlsruhe, 12. Juli 2018
- An equivariant Quillen theorem, Oberseminar Topologie, WWU Münster, 22. Januar 2018
- On the topology of moduli spaces of non-negative Ricci-curved metrics, Oberseminar Topologie, Université de Fribourg, 4. Dezember 2017
- Non-negatively curved GKM manifolds, AG Differentialgeometrie, KIT Karlsruhe, 27. November 2017
- On moduli spaces of invariant metrics of positive scalar curvature on quasitoric manifolds, AG Differentialgeometrie, KIT Karlsruhe, 5. Juli 2017
- On moduli spaces of invariant metrics of positive scalar curvature on quasitoric manifolds, Oberseminar Differentialgeometrie, WWU Münster, 15. Mai 2017
- Positively curved GKM manifolds, Oberseminar Topologie, Université de Fribourg, 3. April 2017
- On moduli spaces of invariant metrics of positive scalar curvature on quasitoric manifolds, Forschungsseminar Differentialgeometrie und Analysis, Universität Marburg, 31. Januar 2017
- On moduli spaces of invariant metrics of positive scalar curvature on quasitoric manifolds, Oberseminar Differentialgeometrie, Universität Augsburg, 24. Oktober 2016
- Equivariant bordism and applications in differential geometry, Augsburger Mathematisches Kolloquium, Universität Augsburg, 12. Januar 2016, Slides
- Invariant metrics of positive scalar curvature on S^1-manifolds, AG Differentialgeometrie, KIT, 28. Mai 2015
- Invariant metrics of positive scalar curvature on S^1-manifolds, Oberseminar Globale Analysis, Universität Regensburg, 13. Mai 2015
- Invariant metrics of positive scalar curvature on S^1-manifolds, Oberseminar Topologie, WWU Münster, 11. Mai 2015
- Torus manifolds and non-negative curvature, Oberseminar Differentialgeometrie, Universität Augsburg, 3. November 2014
- Rationally elliptic and non-negatively curved torus manifolds, Oberseminar Topologie, Université de Fribourg, 20. März 2014
- Positiv gekrümmte GKM-Mannigfaltigkeiten, AG Differentialgeometrie, KIT, 8. Januar 2014
- Non-negatively curved torus manifolds, Oberseminar Differentialgeometrie, Universität Hamburg, 4. November 2013
- Torus actions and positive scalar curvature, Mathematics Colloquium, Universidad de los Andes, Bogota, Colombia, 15. August 2013
- Metrics of positive scalar curvature on S^1-manifolds, Oberseminar Differentialgeometrie, Universität Münster, 17. Juni 2013
- Circle actions and scalar curvature, Oberseminar Topologie, Université de Fribourg, 14. Dezember 2012
- Circle actions and scalar curvature, Oberseminar Differentialgeometrie, Universität Augsburg, 5. November 2012
- S^1-Wirkungen und Skalarkrümmung, Oberseminar Geometrie und Topologie, Universität Stuttgart, 23. Oktober 2012
- Eine Konstruktion von invarianten Metriken positiver Skalarkrümmung auf quasitorischen Mannigfaltigkeiten, AG Differentialgeometrie, KIT, 9. Mai 2012
- Dirac-Operators and symmetries of quasitoric manifolds, Topology Seminar, University of Copenhagen, 15. März 2011
- Quasitoric manifolds with non-abelian symmetries, Oberseminar Geometrie, LMU München, 1. Februar 2011
- Torus manifolds with non-abelian symmetries, Topology Seminar, University of Manchester, 22. November 2010
- Quasitorische Mannigfaltigkeiten mit nicht-abelschen Symmetrien, Forschungsseminar Geometrie/Topologie, TU München, 17. Juni 2010