Topology and Geometry Seminar. The seminar is online. To obtain the Zoom credentials, please email the organizer.

| Projective model structures on diffeological spaces and smooth sets and the smooth Oka principleDmitri Pavlov Department of Mathematics and Statistics, Texas Tech University |

| Elastic diffeological spacesChristian Blohmann Max Planck Institute for Mathemaitcs, Bonn |

| Towards knot homology for 3-manifoldsAaron Mazel-Gee Division of Physics, Mathematics and Astronomy, Caltech |

| String bordism invariants in dimension 3 from U(1)-valued TQFTsDomenico Fiorenza Dipartimento di Matematica Guido Castelnuovo, Sapienza Università di Roma |

| Diffeological Principal Bundles, Čech Cohomology and Principal Infinity BundlesEmilio Minichiello Graduate Center, City University of New York |

| Fourier analysis in Diophantine approximationRobert Fraser Department of Mathematics and Statistics, Wichita State University |

| The Dwyer Kan-correspondence and its categorificationTill Heine Department of Mathematics, Universität Hamburg |

| A recognition principle for iterated suspensions as coalgebras over the little cubes operadFelix Wierstra Korteweg-de Vries Institute for Mathematics, University of Amsterdam |