The second homotopy group of the sphere: π₂(S²) in classical and digital topology Published 2023-11-28 Download video MP4 360p Download video MP4 720p Recommendations 20:28 A higher homotopy group for digital images 14:50 Strange Pattern in symmetries - Bott periodicity 22:43 Penrose Tilings from Five Dimensions #SoMEpi 06:55 A Mathematician's View of Evolution 00:45 Japan's Army After WWII What Happened Next 44:31 Lie algebras visualized: why are they defined like that? Why Jacobi identity? 06:03 Addition and subtraction on the Curta. 12 Days of Curtsmas 1 20:47 The Concept So Much of Modern Math is Built On | Compactness 27:29 What Is The Most Complicated Lock Pattern? 11:15 Every Weird Math Paradox 1:16:39 The Curta Calculator (full documentary) Review / How To 1:09:42 The Mystery of Spinors 32:47 The Axiom of Choice 1:08:49 Algebraic Topology 1: Homotopy Equivalence 07:02 Division on the Curta. 12 Days of Curtsmas 7 56:10 I programmed some creatures. They Evolved. 14:21 An elegantly intuitive view of evolution 29:35 The fundamental group and higher homotopy groups 08:08 Curt Herzstark's story. 12 Days of Curtsmas 5 Similar videos 1:05:03 Homotopy Groups of Spheres Talk 00:38 Why greatest Mathematicians are not trying to prove Riemann Hypothesis? || #short #terencetao #maths 57:17 ASQC IV | Stable homotopy and quantum contextuality 1:08:30 Tony Feng - 1/3 Derived Aspects of the Langlands Program 56:53 Hans Werner Henn: Resolutions in K(2)-local homotopy theory – old and new 52:03 Akio Kawauchi, Classical Poincaré conjecture via 4D topology 1:16:29 Discrete Homotopy Theory and Cubical Sets 31:54 Reuben Learns: Nikolaus-Scholze "On Topological Cyclic Homology" 1 47:28 Kohei Tanaka (10/20/22): Sectional category for maps of finite spaces 1:00:35 Oscar Randal Williams, Cohomology of moduli spaces 1:05:34 Du Pei (Harvard CMSA): Holomorphic CFTs and topological modular forms 1:40:39 A. Abanov: Lecture I 1:03:42 BilTop | Igor Sikora | RO(C_2)-graded coefficients of C_2-Eilenberg-MacLane spectra 1:04:43 Complexes, Graphs, Homotopy and Shannon Capacity 58:24 Ahlfors-Bers 2014 "Quasi-isometric rigidity of the class of convex-cocompact Kleinian groups" 1:04:45 Hee-Cheol Kim, "3d Topological Phases from M-theory" 1:00:07 Kontsevich's conjecture on diffeomorphism groups of 3-manifolds - Allen Hatcher 1:16:46 Marc Levine - "The Motivic Fundamental Group" 1:00:30 Marc Hoyois: An Introduction to Framed Correspondences (Part 3) More results