Auf dieser Seite finden Sie Vortragsmanuskripte oder Folien einiger ausgewählter Vorträge, die ich gehalten habe.
Vorträge 2023
- The stringor bundle
Konferenz "Geometries from Strings and Fields", Galileo Galilei Institute, Juli 2023
Video - The stringor bundle
Workshop "Geometric/Topological Quantum Field Theories and Cobordisms", New York University Abu Dhabi, März 2023
Präsentation
Vorträge 2022
- Transgression of higher structures to loop spaces
Workshop "Loop Space and Higher Category", online, Dezember 2022
Präsentation - A representation of the string 2-group
TQFT Club Seminar, online, November 2022
Video Präsentation - Geometric T-Duality: Buscher rules in general topology
Programm "Higher Structures and Field Theory", Erwin-Schrödinger-Institut für Mathematische Physik, August 2022
Video - Diffeology as an extension of topology by geometry
Seminar on diffeology and related topics, online, Juni 2022
Skript
Vorträge 2021
- String geometry
Oberseminar "Renormalisation and Geometry", Universität Potsdam, Juni 2021
Video
Vorträge 2020
- An introduction to higher parallel transport
Oberseminar "Algebraic and combinatorial perspectives in the mathematical sciences", online, September 2020
Präsentation Video - 2-vector bundles, with applications to twisted K-theory and spin geometry
Programm "Higher Structures and Field Theory", Erwin-Schrödinger-Institut für Mathematische Physik, August 2020
Skript
Vorträge 2019
- Functorial Field Theories and Spin Geometry
Mathematics Colloquium Series, New York University Abu Dhabi, November 2019
Skript - Stacks, Gerbes, and T-Duality
Oberseminar "Differential Geometry", University of Adelaide, Februar 2019
Skript
Vorträge 2018
- Fusion in loop spaces
Workshop "Geometric Quantization", Banff International Research Station for Mathematical Innovation and Discovery, April 2018
Video - Non-geometric T-duals and non-abelian gerbes
Workshop "Quantum Spacetime '18", III. Annual workshop of the COST Action MP1405 "Quantum Structure of Spacetime", Best Western Hotel Expo, Sofia, Februar 2018
Skript
Vorträge 2017
- String connections and loop spaces
Workshop "Loop spaces, supersymmetry and index theory", Nankai University at Tianjin, Juli 2017
Präsentation
Vorträge 2016
- String geometry and spin geometry on loop spaces
Parallelsession "Mathematical aspects of string theory and string geometry", Conference ''Classical and quantum symmetries in mathematics and physics'', Friedrich-Schiller-Universität Jena, Juli 2016
Skript - Transgressive central extensions of loop groups
Konferenz "Colloquium on Algebras and Representations - Quantum 2016", Universidad Nacional de Córdoba, März 2016
Skript
Vorträge 2015
- String structures and supersymmetric sigma models
Programm "Higher structures in string theory and quantum field theory", Erwin-Schrödinger-Institut für Mathematische Physik, Dezember 2015
Skript
Vorträge 2014
- Differential string classes and loop spaces
Workshop "Differential Cohomologies", The Graduate Center, CUNY, August 2014
Skript Video - Loop group geometry and transgression
47. Seminar Sophus Lie, Schloss Rauischholzhausen, Mai 2014
Skript
Vorträge 2013
- Unendlich-Kategorien und Quantenfeldtheorie
Weihnachtskolloquium, Universität Greifswald, Dezember 2013
Präsentation - Lectures on gerbes, loop spaces, and Chern-Simons theory
Workshop "Chern-Simons Theory: Geometry, Topology and Physics", University of Pittsburgh, Mai 2013
Skript - Lectures on gerbes with connection
Workshop "Topological Aspects of Quantum Field Theories", National University of Singapore, Januar 2013
Skript
Vorträge 2011
- A loop space formulation for the geometry of abelian gerbes
Konferenz "Analysis, Geometry, and Quantum Field Theory", Universität Potsdam, Oktober 2011
Skript - Geometric string structures and supersymmetric sigma models
Workshop "Higher Gauge Theory, TQFTs, and Categorification", Cardiff University, Mai 2011
Skript - Abelian gauge theories on loop spaces and their regression
Workshop "Higher Gauge Theory, TQFT and Quantum Gravity", Instituto Superior Técnico Lisboa, Februar 2011
Skript
Vorträge 2010
- Global Gauge Anomalies in two-dimensional Bosonic Sigma Models
Workshop "Geometry, Quantum Fields, and Strings: Categorial Aspects", Mathematisches Forschungsinstitut Oberwolfach, Juni 2010
Skript - Transgression of Gerbes to Loop Spaces
Workshop "Higher Structures in Topology and Geometry IV", Georg-August-Universität Göttingen, Juni 2010
Skript - Chern-Simons Theory and the Categorified Group Ring
Workshop "Twisted K-Theory and Loop Groups", Talbot 2010 workshop, Breckenridge, Colorado, Mai 2010
Skript
Vorträge 2009
- String Connections and Supersymmetric Sigma Models
Workshop "Homotopy theory and higher algebraic structures", Special Section at AMS Western Section meeting, University of California at Riverside, November 2009
Skript - Multiplicative Gerbes and Chern-Simons Theory
Oberseminar "Topologie", Universität Bonn, Oktober 2009
Skript - String Connections and Chern-Simons 2-Gerbes
Workshop "Strings, Fields and Topology", Mathematisches Forschungsinstitut Oberwolfach, Juni 2009
Skript - Smooth Functors for higher-dimensional Parallel Transport
Workshop "Smooth Structures in Logic, Category Theory and Physics", Ottawa University, Mai 2009
Skript
Vorträge 2008
- Transport Functors and Connections on Gerbes
Seminar "Topology", University of California at Berkeley, August 2008
Skript Teil 1 Skript Teil 2 - Geometry for 2-Form Gauge Fields
Konferenz "Tagung des Sonderforschungsbereichs Particles, Strings and the Early Universe", Deutsches Elektronen-Synchrotron DESY Zeuthen, Februar 2008
Skript
Vorträge 2007
- Parallel Transport and Functors
Konferenz "Categories in Geometry and mathematical Physics", Mediterranean Institute For Life Sciences, September 2007
Skript - Parallel Transport Functors of Principal Bundles and (non-abelian) Bundle Gerbes
Konferenz "Principal Bundles, Gerbes and Stacks", VBAC-Meeting, Physikzentrum Bad Honnef, Juni 2007
Skript
Vorträge 2006
- Gerbes in unoriented WZW-Models
Sommerschule "Modern Mathematical Physics IV", University of Belgrade, September 2006
Skript
Vorträge 2005
- Introduction to Gerbes in Conformal Field Theory
Workshop "Gerbes, twisted K-theory and conformal field theory", Mathematisches Forschungsinstitut Oberwolfach, August 2005
Skript - Einführung in die perturbative Quantisierung von Chern-Simons-Theorien
Blockseminar "Geometrische Aspekte der konformen Feldtheorie", Rerik, Februar 2005
Skript